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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-104459

YesWiki before 4.6.7 SSRF via ActivityPub WebFinger actor_handle

Description

YesWiki before 4.6.7 contains a server-side request forgery vulnerability in WebfingerService that allows unauthenticated attackers to trigger HTTPS requests to internal hosts. Attackers can POST a crafted actor_handle with a numeric host and port to the abonnements view to probe internal HTTPS services and ports.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

YesWiki yeswiki

Default version status: unaffected

  • 0 to < 4.6.7affected
  • 4.6.7unaffected

References