Account takeover via unsanitized Issues label filter
Published Nov 10, 2025 · Updated Nov 10, 2025
DOM-based XSS in GitHub Enterprise Server allows remote attackers to execute code in another user's browser via a crafted Issues search URL. The Issues search view injects a malicious label: filter value into the DOM without proper sanitization. Exploitation requires network access to the instance and a sudo-mode user to follow the link, granting the injected code that user's elevated session context.
Summary
What happened
DOM-based XSS in GitHub Enterprise Server allows remote attackers to execute code in another user's browser via a crafted Issues search URL. The Issues search view injects a malicious label: filter value into the DOM without proper sanitization. Exploitation requires network access to the instance and a sudo-mode user to follow the link, granting the injected code that user's elevated session context.
The record
- CVE
- CVE-2025-11892
- Published
- Nov 10, 2025
- Updated
- Nov 10, 2025
- Vendor
- Product
- GitHub Enterprise Server
- Classifications
- CWE-79, CAPEC-588, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 10, 2025CVE publishedPublication date reported by the CVE source.
- Nov 10, 2025Record updatedLatest update available in the CVE record.
- Nov 12, 2025Exploitation reportedCanadian Cyber Centre open-source exploitation report
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=3.14.0 <=3.14.18 changes=[{"at":"3.14.19","status":"unaffected"}]
- Affected versionversion=3.15.0 <=3.15.13 changes=[{"at":"3.15.14","status":"unaffected"}]
- Affected versionversion=3.16.0 <=3.16.9 changes=[{"at":"3.16.10","status":"unaffected"}]
- Affected versionversion=3.17.0 <=3.17.6 changes=[{"at":"3.17.7","status":"unaffected"}]
- Affected versionversion=3.18.0 <3.18.1 changes=[{"at":"3.18.1","status":"unaffected"}]
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- Canadian Cyber Centre open-source exploitation reportreported exploitation
Technologies
Your stack
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Your stack
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