CVE-2025-13761VulnerabilityPublished 13 Jan 2026Updated 6 Jul 2026

BIT-gitlab-2025-13761: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

Affects gitlabSource GCVE Database

Not known to be exploited : upgrade to 18.7.1 or 18.6.3 as a priority.

Data as of 26 Oct 2026, 06:26 UTC

Severity

Critical

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.6% chance of exploitation in 30 days – higher than 52% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 18.7.1, 18.6.3

Exploitation evidence

Disclosed: evidence found.
CVE published 13 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade gitlab to 18.7.1 or 18.6.3.

Affected software

Product	Affected	Fixed in
Bitnamigitlab`pkg:bitnami/gitlab`Other threats	Affected >=18.6.0 <18.6.3 >=18.7.0 <18.7.1	Fixed in 18.6.3 18.7.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade GitLab to versions 18.6.3 or later, or 18.7.1 or later, where this vulnerability has been fixed. No other mitigation or temporary workaround is indicated by the vendor advisory.

Description

A critical cross-site scripting (XSS) vulnerability exists in GitLab Community and Enterprise Editions affecting versions from 18.6 up to but not including 18.6.3, and 18.7 up to but not including 18.7.1. This vulnerability could allow an unauthenticated attacker to execute arbitrary code in the context of an authenticated user's browser by tricking the user into visiting a specially crafted webpage. GitLab has remediated this issue in versions 18.6.3 and 18.7.1.

Impact

Successful exploitation allows an unauthenticated attacker to execute arbitrary code in the browser context of an authenticated user, potentially leading to session hijacking, data theft, or other malicious actions performed with the user's privileges. This poses a critical risk to the confidentiality and integrity of user sessions and data.

Summary

GitLab CE/EE versions >=18.6.0 <18.6.3 and >=18.7.0 <18.7.1 contain a cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary code in an authenticated user's browser context. The vulnerability arises from improper neutralization of input during web page generation. The issue has been fixed in GitLab versions 18.6.3 and 18.7.1. There is no CVSS score provided, but the severity is classified as critical. No known exploits in the wild have been reported. The vendor advisory from Red Hat confirms the vulnerability and remediation versions.

References

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