Vulnerability Intelligence Report
YesWiki 4.6.2 before 4.7.0 Missing Authorization in ActivityPub syncActorPosts
CVE-2026-116208
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.
No Active Exploit Signals
CVSS Base Score
7.2
HIGH
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-862 ↗Missing Authorization
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| YesWiki | yeswiki | 4.6.2 < 4.7.0 (affected), 4.7.0 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | VulnCheck · Bug Bounty Provider · USA |
| Reserved | 2026-10-25T12:27:58 |
| Published | 2026-10-25T13:20:38 |
| Patch Date | 2026-10-09 |
| Last Updated | 2026-10-25T13:20:38 |
Community Chatter & Buzz