CVE-2026-104445 YesWiki - Authentication Bypass

YesWiki < 4.6.7 contains an authentication bypass caused by failure to bind verified HTTP signature signer to activity actor in ActivityPub inbox, letting unauthenticated attackers delete or overwrite federated entries, exploit requires attacker to have any ActivityPub keypair.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.40% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Access Control, Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Published
2 October 2026
Updated
15 October 2026
Weakness
CWE-290

Vendor fix

Update to version 4.6.7 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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