{"id":"CVE-2026-116139","revision":"5ada726271e14e8b8be4c17629960d88","records":[{"revision":"5ada726271e14e8b8be4c17629960d88","observedAt":"2026-10-25T15:17:04.459+00:00","statement":{"source":"cve-program","id":"CVE-2026-116139","aliases":[],"title":"WWBN AVideo 26.0 through 29.3.0 Stored XSS via Comment Markdown Rendering","description":"WWBN AVideo 26.0 through 29.3.0 contains a stored cross-site scripting vulnerability that allows authenticated commenters to inject JavaScript because markDownToHTML() preserves event-handler attributes in leading HTML blocks. Attackers can post a comment starting with an img tag carrying an onerror handler, which bypasses the inline sanitizer and executes in viewers' browsers under the application origin.","state":0,"publishedAt":"2026-10-25T13:19:51.674+00:00","modifiedAt":"2026-10-25T13:19:51.674+00:00","affected":[{"ecosystem":"Vendor product","name":"AVideo","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"WWBN\",\n                    \"product\": \"AVideo\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"26.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\",\n                            \"lessThanOrEqual\": \"29.3.0\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","score":5.1,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4,"severity":"MEDIUM"}],"references":["https://github.com/WWBN/AVideo/security/advisories/GHSA-cx46-26xc-2w7f","https://github.com/WWBN/AVideo/commit/f13587c59346b4bf0f449273021d29b869594559","https://www.vulncheck.com/advisories/wwbn-avideo-26.0-through-29.3.0-stored-xss-via-comment-markdown-rendering"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116139","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-116139","identifiers":["CVE-2026-116139"]},"retained":false,"historicalAffected":[]}],"coverage":[]}