PT-2026-104255
CVE-2026-104445
·
Published
2026-10-02
·
Updated
2026-10-02
Description by
CVSS 4.0
8.8
HighMetricsAV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions
YesWiki versions prior to 4.6.7
Description
An authentication bypass exists in the ActivityPub inbox due to a failure to bind the verified HTTP signature signer to the activity actor. This allows unauthenticated attackers possessing any ActivityPub keypair to send signed Delete or Update activities. By referencing a mirrored entry's
sourceUrl, an attacker can delete or overwrite federated entries belonging to other actors.Recommendations
Update to version 4.6.7 or later.
Exploitability
Exploit
Fix
Impacts
Vendors
Affected products
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