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CVE-2025-0811 is a high-severity cross-site scripting vulnerability in GitLab Community Edition and Enterprise Edition caused by improper rendering of certain file types. It affects GitLab CE/EE versions 17.7 before 17.8.6, 17.9 before 17.9.3, and 17.10 before 17.10.1. The flaw allows attacker-controlled content embedded in certain rendered files to be interpreted by a victim’s browser as active script rather than inert content, resulting in client-side script execution in the context of the GitLab application.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity XSS vulnerability in GitLab CE/EE caused by improper rendering of certain file types.
A high-severity XSS vulnerability in GitLab CE/EE caused by improper rendering of certain file types.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.