Known Exploited Vulnerability
9.0
CRITICAL
CVE-2023-34192
Synacor Zimbra Collaboration Suite (ZCS) Cross-Sit - [Actively Exploited]
Description

Cross Site Scripting vulnerability in Zimbra ZCS v.8.8.15 allows a remote authenticated attacker to execute arbitrary code via a crafted script to the /h/autoSaveDraft function.

INFO

Published Date :

July 6, 2023, 4:15 p.m.

Last Modified :

Feb. 27, 2025, 2 a.m.

Remotely Exploitable :

Yes !

Impact Score :

6.0

Exploitability Score :

2.3
CISA Notification
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.

Description :

Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting (XSS) vulnerability that allows a remote authenticated attacker to execute arbitrary code via a crafted script to the /h/autoSaveDraft function.

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.

Notes :

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories ; https://nvd.nist.gov/vuln/detail/CVE-2023-34192

Public PoC/Exploit Available at Github

CVE-2023-34192 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2023-34192 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 Zimbra collaboration
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-2023-34192.

URL Resource
https://wiki.zimbra.com/wiki/Security_Center Release Notes Vendor Advisory
https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy Not Applicable
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories Vendor Advisory
https://wiki.zimbra.com/wiki/Security_Center Release Notes Vendor Advisory
https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy Not Applicable
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories Vendor Advisory

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).

A list of dorks for the Netlas.io search engine, with which you can find millions of objects in the boundless IoE. Contains queries to search for IoT elements, protocols, communication tools, remote access, and more. Over time, the list will grow.

osint penetration-testing security-tools

Updated: 1 month ago
184 stars 23 fork 23 watcher
Born at : April 17, 2023, 10:27 a.m. This repo has been linked 66 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-2023-34192 vulnerability anywhere in the article.

  • TheCyberThrone
CISA adds Zimbra and Microsoft vulnerabilities to its KEV Catalog

The Cybersecurity and Infrastructure Security Agency (CISA) has recently added two critical vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog. These vulnerabilities, affecting Micro ... Read more

Published Date: Feb 26, 2025 (5 days, 23 hours ago)
  • security.nl
VS meldt actief misbruik van kritieke XSS-kwetsbaarheid in Zimbra

Aanvallers maken actief misbruik van een oudere kritieke XSS-kwetsbaarheid in Zimbra of hebben dit gedaan, zo meldt het Cybersecurity and Infrastructure Security Agency (CISA) van het Amerikaanse mini ... Read more

Published Date: Feb 26, 2025 (6 days, 2 hours ago)
  • Cyber Security News
CISA Warns of Microsoft Partner Center Access Control Vulnerability Exploited in Wild

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) issued an urgent advisory on February 25, 2025, confirming that threat actors are actively exploiting a critical privilege escalation v ... Read more

Published Date: Feb 26, 2025 (6 days, 8 hours ago)
  • The Hacker News
CISA Adds Microsoft and Zimbra Flaws to KEV Catalog Amid Active Exploitation

Enterprise Security / Vulnerability The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday placed two security flaws impacting Microsoft Partner Center and Synacor Zimbra Collabor ... Read more

Published Date: Feb 26, 2025 (6 days, 8 hours ago)
  • Cybersecurity News
SoaPy: A New Tool for Stealthy Active Directory Enumeration via ADWS

Enumeration of service accounts using SoaPy | Image: IBMIBM X-Force Research has introduced SoaPy, a new Python-based tool designed for stealthy Active Directory (AD) enumeration using Active Director ... Read more

Published Date: Feb 26, 2025 (6 days, 10 hours ago)
  • Cybersecurity News
CISA Flags Actively Exploited Zimbra (CVE-2023-34192) and Microsoft (CVE-2024-49035) Vulnerabilities

The Cybersecurity and Infrastructure Security Agency (CISA) has issued a warning, adding two critical vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog. This move underscores the ur ... Read more

Published Date: Feb 26, 2025 (6 days, 11 hours ago)
  • Help Net Security
Critical Zimbra RCE vulnerability under mass exploitation (CVE-2024-45519)

Attackers are actively exploiting CVE-2024-45519, a critical Zimbra vulnerability that allows them to execute arbitrary commands on vulnerable installations. Proofpoint’s threat researchers say that t ... Read more

Published Date: Oct 02, 2024 (5 months ago)

The following table lists the changes that have been made to the CVE-2023-34192 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.

  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Feb. 27, 2025

    Action Type Old Value New Value
    Added Date Added 2025-02-25
    Added Due Date 2025-03-18
    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 Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Feb. 25, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
    Added CWE CWE-79
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://wiki.zimbra.com/wiki/Security_Center
    Added Reference https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy
    Added Reference https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jul. 12, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
    Changed Reference Type https://wiki.zimbra.com/wiki/Security_Center No Types Assigned https://wiki.zimbra.com/wiki/Security_Center Release Notes, Vendor Advisory
    Changed Reference Type https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy No Types Assigned https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy Not Applicable
    Changed Reference Type https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories No Types Assigned https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories Vendor Advisory
    Added CWE NIST CWE-79
    Added CPE Configuration OR *cpe:2.3:a:zimbra:collaboration:8.8.15:-:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p1:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p10:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p11:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p12:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p13:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p14:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p15:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p16:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p17:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p18:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p19:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p2:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p20:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p21:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p22:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p23:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p24:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p25:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p26:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p27:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p28:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p29:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p3:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p30:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p31:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p32:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p33:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p34:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p35:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p37:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p4:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p5:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p6:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p7:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p8:*:*:*:*:*:* *cpe:2.3:a:zimbra:collaboration:8.8.15:p9:*:*:*:*:*:*
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-34192 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-2023-34192 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

90.09 }} 62.84%

score

0.99087

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability