Medium 6.5Published Oct 26, 2026

CVE-2026-116825YesWiki from 4.6.2 before 4.7.0 HTTP Signature Replay via ActivityPub Inbox

Updated under an hour ago (Oct 29, 2026, 4:30 PM ET)

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It affects yeswiki. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Start free and add your stackFree account, 3 products Every CVE for yeswiki Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
Weakness (CWE): CWE-294
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 26, 2026
First seen by InfoSec Signals: Oct 26, 2026

Affected products

Affected products

YesWiki yeswiki yeswiki:yeswiki (from the name)	from 4.6.2 before 4.7.0; 4.7.0 not affected	CNA record

References

References

https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7m9j-h553-397x	vendor-advisory
https://www.vulncheck.com/advisories/yeswiki-from-4.6.2-before-4.7.0-http-signature-replay-via-activitypub-inbox	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.