{"id":"CVE-2026-116825","aliases":[],"title":"YesWiki from 4.6.2 before 4.7.0 HTTP Signature Replay via ActivityPub Inbox","titleSource":"VulnCheck","descriptionSource":"VulnCheck","products":[{"vendor":"YesWiki","name":"yeswiki","platforms":[],"versions":[{"version":"4.6.2","status":"affected","lessThan":"4.7.0","versionType":"semver"},{"version":"4.7.0","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-116825"}],"remediation":[],"description":"YesWiki from 4.6.2 before 4.7.0 lacks replay protection in HttpSignatureService::verifySignature(), which never validates the Date header or tracks seen signatures. Attackers who capture a signed request to the /api/forms/{formId}/actor/inbox endpoint can replay it later to re-execute Delete, Update, Follow, or Undo actions.","severity":"high","score":8.3,"published":"2026-10-26T23:05:50.597Z","modified":"2026-10-26T23:05:50.597Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7m9j-h553-397x","https://www.vulncheck.com/advisories/yeswiki-from-4.6.2-before-4.7.0-http-signature-replay-via-activitypub-inbox"],"sources":[{"name":"CVE","id":"CVE-2026-116825","modified":"2026-10-26T23:05:50.597Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-116825"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","score":8.3},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L","score":6.5}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T19:15:31.108Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}