Description
YesWiki before 4.6.7 contains a server-side request forgery vulnerability in validateKeyIdUrl() that allows unauthenticated attackers to bypass the SSRF guard using 6to4, NAT64, or IPv4-compatible IPv6 addresses. Attackers can send a crafted Signature keyId to the public actor inbox route to reach cloud metadata, loopback services, or internal hosts.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| YesWiki | yeswiki | < 4.6.7 | 4.6.7 |
References
- GitHub Security Advisory (GHSA-85f2-5r47-2pwm) vendor-advisory
- VulnCheck Advisory: YesWiki before 4.6.7 SSRF Guard Bypass via IPv6 Transition Addresses third-party-advisory