CVE-2026-104445
YesWiki before 4.6.7 contains an authentication bypass vulnerability in the ActivityPub inbox that…
- Risk score
- 61/100
- CVSS
- 8.2 v3.1
- Exploit chance (30 days)
- 0.4%
- Published
- 2 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- YesWiki before 4.6.7 contains an authentication bypass vulnerability in the ActivityPub inbox that fails to bind the verified HTTP signature signer to the activity actor. Unauthenticated attackers with any ActivityPub keypair can send signed Delete or Update activities referencing a mirrored entry's sourceUrl to delet…
- Affected
- See advisory
- Fix
- Upgrade the product to 4.6.7 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 8.2 high
- Remotely exploitable without logging in
References
Original description
YesWiki before 4.6.7 contains an authentication bypass vulnerability in the ActivityPub inbox that fails to bind the verified HTTP signature signer to the activity actor. Unauthenticated attackers with any ActivityPub keypair can send signed Delete or Update activities referencing a mirrored entry's sourceUrl to delete or overwrite other actors' federated entries.
Last activity 2 Oct 2026. Patch Forecast updates every hour.