๐Ÿ” CVE Alert

CVE-2026-104463

HIGH 7.0

YesWiki before 4.6.7 Unauthenticated SSRF via ActivityPub Inbox

CVSS Score
7.0
EPSS Score
0.0%
EPSS Percentile
0th

YesWiki before 4.6.7 contains a server-side request forgery vulnerability that allows unauthenticated attackers to trigger server requests by sending signed Follow activities to the public forms actor inbox route. Attackers sign requests with their own keyId while supplying internal actor URLs in the body, reaching internal hosts or cloud metadata via blind GET and POST requests.

CWE CWE-918
Vendor yeswiki
Product yeswiki
Published Oct 2, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low

Affected Versions

YesWiki / yeswiki
0 < 4.6.7

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/YesWiki/yeswiki/security/advisories/GHSA-x623-wwf6-f6wp vulncheck.com: https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-unauthenticated-ssrf-via-activitypub-inbox

Credits

๐Ÿ” manus-use