CVE-2025-12716Public exploitNetwork attack vectorHinoki check available

Account actions via unsanitized wiki-page references

Published Dec 11, 2025 · Updated Dec 11, 2025

Stored cross-site scripting in GitLab CE/EE allows remote authenticated users to execute JavaScript in another user's browser via a wiki reference. The WikiPage model passes an unsanitized wiki title or filename as reference_link_text to WikiPageReferenceFilter, where crafted iframe and srcdoc attributes become executable content. Exploitation requires project access to create the wiki content and user interaction with a page that renders its reference; resulting script can read private data or perform account actions as the victim.

CVSS severity8.7
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stored cross-site scripting in GitLab CE/EE allows remote authenticated users to execute JavaScript in another user's browser via a wiki reference. The WikiPage model passes an unsanitized wiki title or filename as reference_link_text to WikiPageReferenceFilter, where crafted iframe and srcdoc attributes become executable content. Exploitation requires project access to create the wiki content and user interaction with a page that renders its reference; resulting script can read private data or perform account actions as the victim.

The record

CVE
CVE-2025-12716
Published
Dec 11, 2025
Updated
Dec 11, 2025
Vendor
GitLab
Product
GitLab
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 11, 2025Record updatedLatest update available in the CVE record.

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.

  1. Affected versionversion=18.4 <18.4.6
  2. Affected versionversion=18.5 <18.5.4
  3. Affected versionversion=18.6 <18.6.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=18.4 <18.4.6; version=18.5 <18.5.4; version=18.6 <18.6.2

Published CVSS scores

8.7GitLab Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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