{"id":"CVE-2026-39840","title":"Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation Mediawiki - Cargo Extension allows XSS Targeting Non-Script Elements.This issue affects Mediawiki - Cargo Extensio…","summary":"Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation Mediawiki - Cargo Extension allows XSS Targeting Non-Script Elements.This issue affects Mediawiki - Cargo Extensio…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-79"],"vendor":"mediawiki","product":"cargo","affected":["cargo < 3.8.7"],"patched":["cargo 3.8.7"],"published":"2026-04-07","updated":"2026-07-24","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-39840","references":[{"url":"https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237966","label":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"},{"url":"https://phabricator.wikimedia.org/T416368","label":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"}],"tags":["nvd"],"epss":0.00158,"epssPercentile":0.05362,"ingestedAt":"2026-07-25T23:05:57.975Z","slug":"CVE-2026-39840","body":"## Overview\n\nImproper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation Mediawiki - Cargo Extension allows XSS Targeting Non-Script Elements.This issue affects Mediawiki - Cargo Extension: before 3.8.7.\n\n## Affected\n\n- `cargo < 3.8.7`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `cargo 3.8.7`","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}