6.5
MEDIUM CVSS 3.1
CVE-2025-53771
Microsoft Office SharePoint Path Traversal Spoofing
Description

Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

INFO

Published Date :

July 20, 2025, 11:15 p.m.

Last Modified :

Aug. 14, 2025, 5:29 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2025-53771 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft sharepoint_server
2 Microsoft sharepoint_server_2016
3 Microsoft sharepoint_server_2019
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
Solution
Address improper authentication flaws to prevent spoofing.
  • Apply latest security updates from Microsoft.
  • Review and strengthen authentication configurations.
  • Monitor network for suspicious activities.
Public PoC/Exploit Available at Github

CVE-2025-53771 has a 11 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-53771.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53771 Vendor Advisory
https://www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available/ Press/Media Coverage
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-53771 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

CVE-2025-53770 - SharePoint

Updated: 2 weeks, 4 days ago
0 stars 0 fork 0 watcher
Born at : Aug. 14, 2025, 8:57 a.m. This repo has been linked 4 different CVEs too.

SharePoint 2025 RCE Exploitation GUI

Python Ruby

Updated: 3 weeks, 3 days ago
1 stars 1 fork 1 watcher
Born at : Aug. 8, 2025, 5:40 p.m. This repo has been linked 4 different CVEs too.

A comprehensive penetration testing framework with a modular architecture for security researchers, penetration testers, and ethical hackers.

Python Shell

Updated: 3 weeks, 3 days ago
0 stars 0 fork 0 watcher
Born at : Aug. 8, 2025, 2:10 p.m. This repo has been linked 3 different CVEs too.

Sharepoint ToolPane - PoC

sharepoint zeroday cve-2025-53770 cve-2025-53771

Python

Updated: 1 month ago
4 stars 1 fork 1 watcher
Born at : July 26, 2025, 10:54 a.m. This repo has been linked 2 different CVEs too.

#AI powered OSINT pipeline that automates the transformation of Google Dorks into actionable threat intelligence and structured STIX 2.1 reports.

Python Shell

Updated: 1 week ago
1 stars 0 fork 0 watcher
Born at : July 24, 2025, 3:16 a.m. This repo has been linked 2 different CVEs too.

Scans Windows IIS logs for signs of CVE-2025-53770 & CVE-2025-53771

PowerShell

Updated: 3 weeks, 5 days ago
0 stars 1 fork 1 watcher
Born at : July 23, 2025, 11:43 p.m. This repo has been linked 2 different CVEs too.

None

PowerShell

Updated: 1 month, 1 week ago
0 stars 0 fork 0 watcher
Born at : July 22, 2025, 9:54 p.m. This repo has been linked 4 different CVEs too.

A Python-based reconnaissance scanner for safely identifying potential exposure to SharePoint vulnerability CVE-2025-53770.

blueteam cve cve-2025-53770 infosec osint pentest reconnaissance security-tool sharepoint sharepoint-2016 vulnerability

Python

Updated: 1 month, 1 week ago
1 stars 1 fork 1 watcher
Born at : July 22, 2025, 7:17 p.m. This repo has been linked 2 different CVEs too.

Honeypot for CVE-2025-53770 aka ToolShell

Python Shell YARA

Updated: 1 month, 1 week ago
0 stars 1 fork 1 watcher
Born at : July 22, 2025, 1:44 p.m. This repo has been linked 4 different CVEs too.

Interviews and appearances in social media

Updated: 3 days, 7 hours ago
0 stars 0 fork 0 watcher
Born at : Jan. 14, 2024, 4:41 p.m. This repo has been linked 3 different CVEs too.

SecDB - Security Feeds

cve security-feeds vulnerability

Updated: 3 weeks, 2 days ago
0 stars 0 fork 0 watcher
Born at : July 1, 2022, 8:37 p.m. This repo has been linked 102 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-53771 vulnerability anywhere in the article.

  • nextron-systems.com
When Best Practices Aren’t Enough: UK Breaches Underscore the Importance of Compromise Assessments

Despite extensive guidance from national authorities, several prominent UK organizations have recently suffered significant cyber attacks. Incidents at Colt Technology Services, Marks & Spencer, and F ... Read more

Published Date: Aug 28, 2025 (4 days, 12 hours ago)
  • AttackIQ
Emulating the Expedited Warlock Ransomware

Introduction Warlock is a ransomware strain operating under the Ransomware-as-a-Service (RaaS) model that emerged in June 2025, following an advertisement on the Russian Anonymous Marketplace (RAMP) w ... Read more

Published Date: Aug 27, 2025 (5 days, 5 hours ago)
  • TheCyberThrone
Microst Restricts MAPP with China

The summer of 2025 brought a seismic shift in the way Microsoft engages with the global cybersecurity community. At the heart of the story: a wave of massive attacks against on-premises SharePoint ser ... Read more

Published Date: Aug 25, 2025 (1 week ago)
  • Trend Micro
Warlock: From SharePoint Vulnerability Exploit to Enterprise Ransomware

Key takeaways Warlock ransomware operators exploited vulnerable Microsoft SharePoint servers, using targeted HTTP POST requests to upload web shells, enabling reconnaissance and credential theft. More ... Read more

Published Date: Aug 20, 2025 (1 week, 5 days ago)
  • The Cyber Express
Qilin Remains Top Ransomware Group as Attacks Rise

Qilin continues to stake a claim as the top ransomware group in the wake of the decline of RansomHub earlier this year. In July, Qilin led all ransomware groups in claimed victims for the third time i ... Read more

Published Date: Aug 15, 2025 (2 weeks, 3 days ago)
  • CybersecurityNews
Qilin Ransomware Leads The Attack Landscape With 70+ Claimed Victims in July

The ransomware threat landscape witnessed a concerning surge in July 2025, with the Qilin ransomware group maintaining its dominant position for the third time in four months. The group successfully c ... Read more

Published Date: Aug 14, 2025 (2 weeks, 3 days ago)
  • Help Net Security
Microsoft fixes “BadSuccessor” Kerberos vulnerability (CVE-2025-53779)

For August 2025 Patch Tuesday, Microsoft has released security updates resolving 100+ security vulnerabilities in its various solutions, including a relative path traversal flaw in Windows Kerberos (C ... Read more

Published Date: Aug 13, 2025 (2 weeks, 5 days ago)
  • Help Net Security
August 2025 Patch Tuesday forecast: Try, try, again

July turned into a surprisingly busy month. It started slowly with a fairly ‘calm’ Patch Tuesday as I forecasted in my last blog. Although there were 130 new CVEs addressed across all the Microsoft re ... Read more

Published Date: Aug 08, 2025 (3 weeks, 3 days ago)
  • The Register
CISA releases malware analysis for Sharepoint Server attack

CISA has published a malware analysis report with compromise indicators and Sigma rules for "ToolShell" attacks targeting specific Microsoft SharePoint Server versions. "Cyber threat actors have chain ... Read more

Published Date: Aug 07, 2025 (3 weeks, 4 days ago)
  • security.nl
VS deelt informatie over malware aangetroffen bij SharePoint-aanvallen

Het Amerikaanse cyberagentschap CISA heeft informatie gedeeld over malware die bij recente aanvallen tegen Microsoft SharePoint-servers is aangetroffen. Met de informatie kunnen organisaties kijken of ... Read more

Published Date: Aug 07, 2025 (3 weeks, 4 days ago)
  • Daily CyberSecurity
CISA Warns of “ToolShell”: Critical Exploit Chain Hits SharePoint Servers, Bypasses Authentication

The Cybersecurity and Infrastructure Security Agency (CISA) has released an in-depth Malware Analysis Report warning of a sophisticated exploitation campaign targeting on-premises Microsoft SharePoint ... Read more

Published Date: Aug 07, 2025 (3 weeks, 4 days ago)
  • CybersecurityNews
Chinese Hackers Exploit SharePoint Vulnerabilities to Deploy Toolsets Includes Backdoor, Ransomware and Loaders

A sophisticated Chinese threat actor has been exploiting critical vulnerabilities in Microsoft SharePoint to deploy an advanced malware toolset dubbed “Project AK47,” according to new research publish ... Read more

Published Date: Aug 06, 2025 (3 weeks, 5 days ago)
  • CrowdStrike.com
CrowdStrike Detects and Blocks Initial SharePoint Zero-Day Exploitation

Beginning on July 18, 2025, at approximately 0700 UTC, CrowdStrike Falcon® Complete Next-Gen MDR and CrowdStrike Falcon® Adversary OverWatch™ identified a wave of Microsoft SharePoint exploitation att ... Read more

Published Date: Aug 05, 2025 (3 weeks, 6 days ago)
  • CrowdStrike.com
CrowdStrike Detects and Blocks Initial SharePoint Zero-Day Exploitation

Beginning on July 18, 2025, at approximately 0700 UTC, CrowdStrike Falcon® Complete Next-Gen MDR and CrowdStrike Falcon® Adversary OverWatch™ identified a wave of Microsoft SharePoint exploitation att ... Read more

Published Date: Aug 05, 2025 (3 weeks, 6 days ago)
  • CrowdStrike.com
CrowdStrike Detects and Blocks Initial SharePoint Zero-Day Exploitation

Beginning on July 18, 2025, at approximately 0700 UTC, CrowdStrike Falcon® Complete Next-Gen MDR and CrowdStrike Falcon® Adversary OverWatch™ identified a wave of Microsoft SharePoint exploitation att ... Read more

Published Date: Aug 04, 2025 (4 weeks ago)
  • CrowdStrike.com
CrowdStrike Detects and Blocks Initial SharePoint Zero-Day Exploitation

Beginning on July 18, 2025, at approximately 0700 UTC, CrowdStrike Falcon® Complete Next-Gen MDR and CrowdStrike Falcon® Adversary OverWatch™ identified a wave of Microsoft SharePoint exploitation att ... Read more

Published Date: Aug 04, 2025 (4 weeks ago)
  • BleepingComputer
Ransomware gangs join attacks targeting Microsoft SharePoint servers

Ransomware gangs have recently joined ongoing attacks targeting a Microsoft SharePoint vulnerability chain, part of a broader exploitation campaign that has already led to the breach of at least 148 o ... Read more

Published Date: Aug 04, 2025 (4 weeks ago)
  • CrowdStrike.com
CrowdStrike Detects and Blocks Initial SharePoint Zero-Day Exploitation

Beginning on July 18, 2025, at approximately 0700 UTC, CrowdStrike Falcon® Complete Next-Gen MDR and CrowdStrike Falcon® Adversary OverWatch™ identified a wave of Microsoft SharePoint exploitation att ... Read more

Published Date: Aug 04, 2025 (4 weeks ago)
  • CrowdStrike.com
CrowdStrike Detects and Blocks Initial SharePoint Zero-Day Exploitation

Beginning on July 18, 2025, at approximately 0700 UTC, CrowdStrike Falcon® Complete Next-Gen MDR and CrowdStrike Falcon® Adversary OverWatch™ identified a wave of Microsoft SharePoint exploitation att ... Read more

Published Date: Aug 04, 2025 (4 weeks ago)
  • CrowdStrike.com
CrowdStrike Detects and Blocks Initial SharePoint Zero-Day Exploitation

Beginning on July 18, 2025, at approximately 0700 UTC, CrowdStrike Falcon® Complete Next-Gen MDR and CrowdStrike Falcon® Adversary OverWatch™ identified a wave of Microsoft SharePoint exploitation att ... Read more

Published Date: Aug 04, 2025 (4 weeks ago)

The following table lists the changes that have been made to the CVE-2025-53771 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Aug. 14, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:* *cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:* versions up to (excluding) 16.0.18526.20508
    Added Reference Type Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53771 Types: Vendor Advisory
    Added Reference Type CVE: https://www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available/ Types: Press/Media Coverage
  • CVE Modified by [email protected]

    Jul. 31, 2025

    Action Type Old Value New Value
    Changed Description Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network. Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
  • CVE Modified by [email protected]

    Jul. 22, 2025

    Action Type Old Value New Value
    Changed Description Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network. Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
    Removed CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
    Added CWE CWE-287
    Removed CWE CWE-22
    Removed CWE CWE-20
    Removed CWE CWE-707
  • CVE Modified by [email protected]

    Jul. 21, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
    Removed CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Jul. 21, 2025

    Action Type Old Value New Value
    Added Reference https://www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available/
  • New CVE Received by [email protected]

    Jul. 20, 2025

    Action Type Old Value New Value
    Added Description Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
    Added CWE CWE-22
    Added CWE CWE-20
    Added CWE CWE-707
    Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53771
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact