{"id":"CVE-2026-115541","aliases":["EUVD-2026-116535","GHSA-ph8x-wg86-qp2m"],"status":"published","title":"HumHub 1.19.0 - Stored cross-site scripting in friendship confirmation","description":"HumHub Community Edition 1.19.0 contains a stored cross-site scripting vulnerability in the friendship confirmation dialog. An authenticated low-privileged member can save HTML in their first and last name. When another authenticated user clicks Friends for that profile, HumHub places the decoded display name into a modal through jQuery html(), causing attacker-controlled markup to execute in the victim's HumHub origin.","severity":{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00401,"percentile":0.34797,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-11-03T21:59:59Z","modified":"2026-11-04T10:46:09Z","products":[{"vendor":"humhub","product":"humhub community edition"}],"references":[{"url":"https://fluidattacks.com/advisories/toujours","tags":["third-party-advisory","advisory"]},{"url":"https://github.com/humhub/humhub","tags":["product","package"]},{"url":"https://github.com/humhub/humhub/security/advisories/GHSA-ph8x-wg86-qp2m","tags":["vendor-advisory","advisory"]},{"url":"https://github.com/humhub/humhub/pull/8624","tags":["patch","fix"]},{"url":"https://github.com/humhub/humhub/pull/8625","tags":["patch","fix"]},{"url":"https://github.com/humhub/humhub/releases/tag/v1.19.3","tags":["release-notes","advisory"]},{"url":"https://github.com/humhub/humhub/releases/tag/v1.18.7","tags":["release-notes","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115541.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115541","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-115541","title":"HumHub 1.19.0 - Stored cross-site scripting in friendship confirmation","description":"HumHub Community Edition 1.19.0 contains a stored cross-site scripting vulnerability in the friendship confirmation dialog. An authenticated low-privileged member can save HTML in their first and last name. When another authenticated user clicks Friends for that profile, HumHub places the decoded display name into a modal through jQuery html(), causing attacker-controlled markup to execute in the victim's HumHub origin.","status":"published","published":"2026-11-03T21:59:59.116Z","modified":"2026-11-06T19:33:23.843Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-06T20:30:03.598374Z"}],"euvd":[{"id":"EUVD-2026-116535","description":"HumHub Community Edition 1.19.0 contains a stored cross-site scripting vulnerability in the friendship confirmation dialog. An authenticated low-privileged member can save HTML in their first and last name. When another authenticated user clicks Friends for that profile, HumHub places the decoded display name into a modal through jQuery html(), causing attacker-controlled markup to execute in the victim's HumHub origin.","status":"published","published":"2026-11-03T21:59:59Z","modified":"2026-11-06T19:33:23Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N","level":"high"}],"updated_at":"2026-11-06T20:06:05.048214Z"}],"nvd":[{"id":"CVE-2026-115541","description":"HumHub Community Edition 1.19.0 contains a stored cross-site scripting vulnerability in the friendship confirmation dialog. An authenticated low-privileged member can save HTML in their first and last name. When another authenticated user clicks Friends for that profile, HumHub places the decoded display name into a modal through jQuery html(), causing attacker-controlled markup to execute in the victim's HumHub origin.","status":"published","published":"2026-11-03T22:19:17.723Z","modified":"2026-11-06T20:17:11.063Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-06T22:02:16.475328Z"}],"osv":[{"id":"CVE-2026-115541","title":"HumHub 1.19.0 - Stored cross-site scripting in friendship confirmation","description":"HumHub Community Edition 1.19.0 contains a stored cross-site scripting vulnerability in the friendship confirmation dialog. An authenticated low-privileged member can save HTML in their first and last name. When another authenticated user clicks Friends for that profile, HumHub places the decoded display name into a modal through jQuery html(), causing attacker-controlled markup to execute in the victim's HumHub origin.","status":"published","published":"2026-11-03T21:59:59.116Z","modified":"2026-11-08T02:30:49.780682546Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-07T11:15:38.581573Z"}]}}