YesWiki before 4.6.7 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to make the server fetch… (CVE-2026-104442)
YesWiki versions prior to 4.6.7 have an unauthenticated server-side request forgery (SSRF) vulnerability. This flaw allows remote attackers to supply a syndication action via the render handler's content parameter, causing the server to fetch arbitrary URLs. Exploitation can target internal hosts and ports, read fetched feed content in the rendered page, and cause feed enclosures to be downloaded into the files directory.
AI Analysis
Technical Summary
CVE-2026-104442 describes an SSRF vulnerability in YesWiki before version 4.6.7. The vulnerability arises from the render handler's content parameter accepting a syndication action that enables unauthenticated remote attackers to make the server fetch arbitrary URLs. This can be used to access internal network resources and retrieve feed content, as well as cause files to be downloaded into the server's files directory.
Potential Impact
The vulnerability allows remote attackers to perform SSRF attacks without authentication, potentially accessing internal hosts and ports not normally reachable externally. Attackers can read back fetched feed content in the rendered page, which may leak information. Additionally, feed enclosures can be downloaded into the files directory, possibly leading to unauthorized file storage on the server. There is no direct confidentiality impact on existing data, but integrity is impacted due to unauthorized content injection. Availability is not affected.
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 other mitigation guidance is provided or required.
YesWiki before 4.6.7 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to make the server fetch… (CVE-2026-104442)
Description
YesWiki versions prior to 4.6.7 have an unauthenticated server-side request forgery (SSRF) vulnerability. This flaw allows remote attackers to supply a syndication action via the render handler's content parameter, causing the server to fetch arbitrary URLs. Exploitation can target internal hosts and ports, read fetched feed content in the rendered page, and cause feed enclosures to be downloaded into the files directory.
CVSS v3.1
Score 5.8medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-104442 describes an SSRF vulnerability in YesWiki before version 4.6.7. The vulnerability arises from the render handler's content parameter accepting a syndication action that enables unauthenticated remote attackers to make the server fetch arbitrary URLs. This can be used to access internal network resources and retrieve feed content, as well as cause files to be downloaded into the server's files directory.
Potential Impact
The vulnerability allows remote attackers to perform SSRF attacks without authentication, potentially accessing internal hosts and ports not normally reachable externally. Attackers can read back fetched feed content in the rendered page, which may leak information. Additionally, feed enclosures can be downloaded into the files directory, possibly leading to unauthorized file storage on the server. There is no direct confidentiality impact on existing data, but integrity is impacted due to unauthorized content injection. Availability is not affected.
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 other mitigation guidance is provided or required.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-jf5x-83r6-59f3
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-104442"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6abfee90a43b0b3b89e55046
Added to database: 10/02/2026, 17:49:04 UTC
Last enriched: 10/02/2026, 17:59:29 UTC
Last updated: 10/02/2026, 21:25:57 UTC
Views: 2
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