{"id":"EUVD-2026-30742","revision":"d1a9edb939b0428ca3d3c09527fe590b","records":[{"revision":"d1a9edb939b0428ca3d3c09527fe590b","observedAt":"2026-10-28T04:54:10.407+00:00","statement":{"source":"euvd","id":"EUVD-2026-30742","aliases":["CVE-2026-3495","GHSA-jx93-pf6x-874r"],"title":"Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to escape some variables that could contain malicious content during error page composition which allows an attacker with access to edit some site configuration to execute some …","description":"Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to escape some variables that could contain malicious content during error page composition which allows an attacker with access to edit some site configuration to execute some malicious code via injecting some JS as part of those values.. Mattermost Advisory ID: MMSA-2026-00622","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N","score":3.8,"severity":null}],"references":["https://mattermost.com/security-updates"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-30742","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"May 18, 2026, 6:58:29 AM","dateUpdated":"May 18, 2026, 2:33:30 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-30742","identifiers":["EUVD-2026-30742","CVE-2026-3495","GHSA-jx93-pf6x-874r"]},"retained":false,"historicalAffected":[]}],"coverage":[]}