CVE-2025-2776
SysAid On-Prem Improper Restriction of XML External Entity Reference Vulnerability - [Actively Exploited]
Description
SysAid On-Prem versions <= 23.3.40 are vulnerable to an unauthenticated XML External Entity (XXE) vulnerability in the Server URL processing functionality, allowing for administrator account takeover and file read primitives.
INFO
Published Date :
May 7, 2025, 3:15 p.m.
Last Modified :
July 23, 2025, 1 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
SysAid On-Prem contains an improper restriction of XML external entity reference vulnerability in the Server URL processing functionality, allowing for administrator account takeover and file read primitives.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
https://documentation.sysaid.com/docs/24-40-60 ; https://nvd.nist.gov/vuln/detail/CVE-2025-2776
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update SysAid On-Prem to the latest version.
- Apply vendor patches for versions prior to 23.3.40.
Public PoC/Exploit Available at Github
CVE-2025-2776 has a 3 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-2025-2776.
| URL | Resource |
|---|---|
| https://documentation.sysaid.com/docs/24-40-60 | Release Notes |
| https://labs.watchtowr.com/sysowned-your-friendly-rce-support-ticket/ | Exploit Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-2776 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-2776
weaknesses.
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).
This is a Pre-Authentication Remote Code Execution (RCE) exploit chain targeting SysAid On-Premise servers running on Windows.
Python
PoC for SysAid PreAuth RCE Chain (CVE-2025-2775, CVE-2025-2776, CVE-2025-2777, CVE-2025-2778)
Python
CISA Bot is a GitHub bot that automatically monitors the Cybersecurity and Infrastructure Security Agency (CISA) Known Exploited Vulnerabilities (KEV) Catalog. When new vulnerabilities are published in the KEV, the bot creates GitHub issues in this repository with detailed information about each vulnerability.
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-2776 vulnerability anywhere in the article.
-
BleepingComputer
CISA warns of hackers exploiting SysAid vulnerabilities in attacks
CISA has warned that attackers are actively exploiting two security vulnerabilities in the SysAid IT service management (ITSM) software to hijack administrator accounts. The two unauthenticated XML Ex ... Read more
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security.nl
VS meldt actief misbruik van kritieke lekken in helpdesksoftware SysAid
Aanvallers maken actief misbruik van kritieke kwetsbaarheden in helpdesksoftware SysAid, zo meldt het Cybersecurity and Infrastructure Security Agency (CISA) van het Amerikaanse ministerie van Homelan ... Read more
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The Hacker News
CISA Warns: SysAid Flaws Under Active Attack Enable Remote File Access and SSRF
Jul 23, 2025Ravie LakshmananVulnerability / Software Security The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added two security flaws impacting SysAid IT support software to its Kn ... Read more
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Daily CyberSecurity
CISA Alert: Actively Exploited Zero-Days in CrushFTP, Chrome, and SysAid Added to KEV Catalog
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has updated its Known Exploited Vulnerabilities (KEV) Catalog with four new entries that are currently under active exploitation. These ... Read more
-
Cyber Security News
SysAid ITSM Platform Vulnerabilities Allows Pre-authenticated Remote Command Execution
A critical vulnerability chain in SysAid’s On-Premise IT Service Management (ITSM) platform that allows attackers to achieve pre-authenticated Remote Command Execution (RCE). The findings detail how m ... Read more
The following table lists the changes that have been made to the
CVE-2025-2776 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.
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CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725
Jul. 23, 2025
Action Type Old Value New Value Added Date Added 2025-07-22 Added Due Date 2025-08-12 Added Required Action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Added Vulnerability Name SysAid On-Prem Improper Restriction of XML External Entity Reference Vulnerability -
Initial Analysis by [email protected]
Jun. 27, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:sysaid:sysaid:*:*:*:*:on-premises:*:*:* versions up to (including) 23.3.40 Added Reference Type VulnCheck: https://documentation.sysaid.com/docs/24-40-60 Types: Release Notes Added Reference Type VulnCheck: https://labs.watchtowr.com/sysowned-your-friendly-rce-support-ticket/ Types: Exploit, Third Party Advisory -
New CVE Received by [email protected]
May. 07, 2025
Action Type Old Value New Value Added Description SysAid On-Prem versions <= 23.3.40 are vulnerable to an unauthenticated XML External Entity (XXE) vulnerability in the Server URL processing functionality, allowing for administrator account takeover and file read primitives. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L Added CWE CWE-611 Added Reference https://documentation.sysaid.com/docs/24-40-60 Added Reference https://labs.watchtowr.com/sysowned-your-friendly-rce-support-ticket/