YesWiki before 4.6.7 contains a server-side request forgery vulnerability in WebfingerService that allows unauthenticated attackers to trigger HTTPS… (CVE-2026-104459)
YesWiki versions prior to 4.6.7 contain a server-side request forgery (SSRF) vulnerability in the WebfingerService. This flaw allows unauthenticated attackers to send crafted HTTPS requests to internal hosts by posting a specially crafted actor_handle with numeric host and port values to the abonnements view. The vulnerability can be used to probe internal HTTPS services and ports.
AI Analysis
Technical Summary
The vulnerability in YesWiki before version 4.6.7 is a server-side request forgery (CWE-918) in the WebfingerService component. An unauthenticated attacker can exploit this by sending a POST request with a crafted actor_handle parameter containing numeric host and port values to the abonnements view. This triggers HTTPS requests from the server to internal hosts and ports, potentially allowing the attacker to probe internal network services.
Potential Impact
Exploitation of this SSRF vulnerability allows an unauthenticated attacker to make the YesWiki server initiate HTTPS requests to internal hosts and ports. This can lead to information disclosure about internal network services. The CVSS 3.1 base score is 6.5 (medium severity), reflecting low confidentiality impact, no integrity impact, and low availability impact.
Mitigation Recommendations
A fix is available in YesWiki version 4.6.7. Users should upgrade to version 4.6.7 or later to remediate this vulnerability. No vendor advisory or patch link was provided, so verify the patch status with the official YesWiki release notes or security advisories.
YesWiki before 4.6.7 contains a server-side request forgery vulnerability in WebfingerService that allows unauthenticated attackers to trigger HTTPS… (CVE-2026-104459)
Description
YesWiki versions prior to 4.6.7 contain a server-side request forgery (SSRF) vulnerability in the WebfingerService. This flaw allows unauthenticated attackers to send crafted HTTPS requests to internal hosts by posting a specially crafted actor_handle with numeric host and port values to the abonnements view. The vulnerability can be used to probe internal HTTPS services and ports.
CVSS v3.1
Score 6.5medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in YesWiki before version 4.6.7 is a server-side request forgery (CWE-918) in the WebfingerService component. An unauthenticated attacker can exploit this by sending a POST request with a crafted actor_handle parameter containing numeric host and port values to the abonnements view. This triggers HTTPS requests from the server to internal hosts and ports, potentially allowing the attacker to probe internal network services.
Potential Impact
Exploitation of this SSRF vulnerability allows an unauthenticated attacker to make the YesWiki server initiate HTTPS requests to internal hosts and ports. This can lead to information disclosure about internal network services. The CVSS 3.1 base score is 6.5 (medium severity), reflecting low confidentiality impact, no integrity impact, and low availability impact.
Mitigation Recommendations
A fix is available in YesWiki version 4.6.7. Users should upgrade to version 4.6.7 or later to remediate this vulnerability. No vendor advisory or patch link was provided, so verify the patch status with the official YesWiki release notes or security advisories.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-pg4j-r96p-6rg4
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-104459"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6abfee8aa43b0b3b89e54bf5
Added to database: 10/02/2026, 17:48:58 UTC
Last enriched: 10/02/2026, 17:58:30 UTC
Last updated: 10/02/2026, 21:26:13 UTC
Views: 3
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