SB2025052215 - Multiple vulnerabilities in GitHub Enterprise Server

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Main Vulnerability Database SB2025052215

SB2025052215 - Multiple vulnerabilities in GitHub Enterprise Server

Published: May 22, 2025

Security Bulletin ID SB2025052215
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 67% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Missing authorization (CVE-ID: CVE-2025-3124)

CWE-ID: CWE-862 - Missing Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to missing authorization checks. A remote user can see private repository names in the GitHub Advanced Security Overview when filtering with only "archived:".


2) Exposed dangerous method or function (CVE-ID: CVE-2025-3509)

CWE-ID: CWE-749 - Exposed Dangerous Method or Function

CVSSv4: CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists within the pre-receive hook functionality, which becomes available during a hot patch upgrade. A remote user with site administrator permissions or a user with privileges to modify repositories containing pre-receive hooks can execute arbitrary code on the system.


3) Cross-site scripting (CVE-ID: CVE-2025-3246)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear


The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote user can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


Remediation

Install update from vendor's website.

References