All vulnerabilities
CVE-2026-116208GHSA-cr64-h6xp-9g2j

YesWiki 4.6.2 before 4.7.0 Missing Authorization in ActivityPub syncActorPosts

YesWiki yeswiki
Open in ThreatlineRecord JSON
CVSS
7.2High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in4.7.0Fixed versionCVE List
Published25 Oct 2026Updated 25 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Reports 1

1 outlet mention it. Reports are not confirmation; each links to its source.

Description

YesWiki from 4.6.2 before 4.7.0 contains a missing authorization vulnerability in ActivityPubService::syncActorPosts that lets malicious ActivityPub servers manipulate other actors' mirrored entries. Attackers can serve a poisoned outbox with cross-actor Delete, Update, or Create activities during admin-initiated sync to delete, overwrite, forge, or mass-delete entries.

Text from CVE List

Affected versions 2

  • yeswikiaffected: 4.6.2 before 4.7.0CVE List
  • yeswikiunaffected: 4.7.0CVE List

References 2