{"schema":"threatline.record/2","record":{"id":"CVE-2026-104450","aliases":["GHSA-7547-q56p-h99v"],"summary":"YesWiki before 4.6.7 ACL Bypass and Stored XSS via pointimage Action","details":"YesWiki before 4.6.7 contains a missing authorization flaw in the pointimage action (tools/attach/actions/pointimage.php), which saves content to an attacker-chosen page with write ACL checks bypassed. Unauthenticated attackers can POST pagetag, title, and description fields to any page rendering {{pointimage}} to append raw HTML or JavaScript to any wiki page, including pages whose write ACL restricts editing, causing stored cross-site scripting in viewers' and administrators' browsers.","categories":["Unclassified"],"product":"yeswiki","vendor":"YesWiki","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104450","source_modified_at":"2026-10-02T14:52:29.719Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"yeswiki","vendor":"YesWiki","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"4.6.7"},{"version":"4.6.7","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104450","source_modified_at":"2026-10-02T14:52:29.719Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"yeswiki","ecosystem":null},"version":"4.6.7","basis":"first unaffected version stated in the CVE record"}],"cvss":8.2,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00265,"percentile":0.17494,"score_date":"2026-10-23"},"published_at":"2026-10-02T11:38:22.393Z","modified_at":"2026-10-02T14:52:29.719Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-104450","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-02T14:52:29.719Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-104450","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7547-q56p-h99v","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-acl-bypass-and-stored-xss-via-pointimage-action","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-02T14:51:36.039502Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-02T14:52:29.719Z","content_hash":"63a02d6736e1689dac3e0d68a6ae732c13c30071b39484136cc4277be22d0a91"}}