{"id":"CVE-2026-104450","title":"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","summary":"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 …","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N","cwe":["CWE-79"],"vendor":"YesWiki","product":"yeswiki","affected":["yeswiki < 4.6.7"],"published":"2026-10-02","updated":"2026-10-02","sourceUpdated":"2026-10-02T12:17:16.627","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-104450","references":[{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7547-q56p-h99v","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-acl-bypass-and-stored-xss-via-pointimage-action","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-02T12:17:44.339Z","slug":"CVE-2026-104450","body":"## Overview\n\nYesWiki 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}