CVE-2025-11892: GitHub Enterprise Server cross-site scripting (XSS) (CVSS 9.6)

Description

An improper neutralization of input vulnerability was identified in GitHub Enterprise Server that allows DOM-based cross-site scripting via Issues search label filter that could lead to privilege escalation and unauthorized workflow triggers. Successful exploitation requires an attacker to have access to the target GitHub Enterprise Server instance and to entice a user, while operating in sudo mode, to click on a crafted malicious link to perform actions that require elevated privileges. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18.1, 3.17.7, 3.16.10, 3.15.14, 3.14.19.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionRequired

ScopeChanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected products

GitHub Enterprise Server≥ 3.15.0 < 3.15.14 · ≥ 3.16.0 < 3.16.10 · ≥ 3.17.0 < 3.17.7 · < 3.14.19

Remediation

Fixed in

GitHub Enterprise Server≥ 3.15.14

Patch & vendor advisories

References

https://docs.github.com/en/[email protected]/admin/release-notes#3.14.19Release NotesVendor Advisory
https://docs.github.com/en/[email protected]/admin/release-notes#3.15.14Release NotesVendor Advisory
https://docs.github.com/en/[email protected]/admin/release-notes#3.16.10Release NotesVendor Advisory
https://docs.github.com/en/[email protected]/admin/release-notes#3.17.7Release NotesVendor Advisory
https://docs.github.com/en/[email protected]/admin/release-notes#3.18.1Release NotesVendor Advisory

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2025-11892 being actively exploited?

CVE-2025-11892 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.65%.

How severe is CVE-2025-11892?

CVE-2025-11892 has a CVSS 3.1 base score of 9.6, rated critical. EPSS estimates a 0.65% probability of exploitation.

Which products are affected by CVE-2025-11892?

Affected products include GitHub Enterprise Server.

How do I fix CVE-2025-11892?

Upgrade affected software to a fixed version, for example GitHub Enterprise Server 3.15.14 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-11892 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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