High severity · published Apr 17, 2025
CVE-2025-3246
Markdown math block sanitization bypass allows privilege escalation and unauthorized workflow triggers
7.6
CVSS
0.3%
EPSS
No
On KEV
Description
An improper neutralization of input vulnerability was identified in GitHub Enterprise Server that allowed cross-site scripting in GitHub Markdown that used `$$..$$` math blocks. Exploitation required access to the target GitHub Enterprise Server instance and privileged user interaction with the malicious elements. This vulnerability affected version 3.16.1 of GitHub Enterprise Server and was fixed in version 3.16.2. This vulnerability was reported via the GitHub Bug Bounty program.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GE
GitHub Enterprise Server · GitHub
3.16 through 3.16.1 · source: vendor
ES
Enterprise Server · Github
3.16.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-3246
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-3246
Release Notes
https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.2
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