CVE-2026-43879: CWE-918: Server-Side Request Forgery (SSRF) in WWBN AVideo
CVE-2026-43879 is a Server-Side Request Forgery (SSRF) vulnerability in WWBN AVideo versions up to and including 29. 0. An authenticated user can set a donation-notification webhook URL to internal or metadata service addresses. When any user donates, the server sends a POST request to this attacker-controlled URL, enabling blind SSRF. The vulnerability arises because the URL validation only checks format and does not prevent SSRF. Additionally, HTTP redirects can bypass validation due to enabled CURLOPT_FOLLOWLOCATION without revalidation. A code commit (aaacd48f29f1ff71d1eb5fc81d37605f593cefa9) contains a fix, but no official patch release is confirmed yet.
AI Analysis
Technical Summary
WWBN AVideo versions ≤ 29.0 allow authenticated users to configure a donation-notification webhook URL that can point to internal or metadata service IPs (e.g., 127.0.0.1, 169.254.169.254, RFC1918 addresses). When a donation occurs, the server issues a curl POST to this URL, resulting in blind SSRF. The validation uses only a format check (isValidURL()) and does not leverage the safer isSSRFSafeURL() helper. Furthermore, CURLOPT_FOLLOWLOCATION is enabled without per-hop validation, allowing HTTP 307 redirects to internal targets. A code commit has addressed the issue, but no official patch or vendor advisory confirming remediation is available.
Potential Impact
An attacker with an authenticated account can cause the AVideo server to make HTTP POST requests to internal or metadata service endpoints, potentially exposing sensitive internal resources or metadata. The vulnerability allows blind SSRF, which can be leveraged to access internal network services not otherwise reachable. The CVSS score of 5.4 (medium severity) reflects limited confidentiality and integrity impact with no availability impact. No known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. A code commit fixing the issue exists, but no official patch release or vendor advisory is currently available. Until an official fix is released, restrict authenticated user ability to configure webhook URLs or implement network-level controls to prevent server-side requests to internal or metadata IP ranges.
CVE-2026-43879: CWE-918: Server-Side Request Forgery (SSRF) in WWBN AVideo
Description
CVE-2026-43879 is a Server-Side Request Forgery (SSRF) vulnerability in WWBN AVideo versions up to and including 29. 0. An authenticated user can set a donation-notification webhook URL to internal or metadata service addresses. When any user donates, the server sends a POST request to this attacker-controlled URL, enabling blind SSRF. The vulnerability arises because the URL validation only checks format and does not prevent SSRF. Additionally, HTTP redirects can bypass validation due to enabled CURLOPT_FOLLOWLOCATION without revalidation. A code commit (aaacd48f29f1ff71d1eb5fc81d37605f593cefa9) contains a fix, but no official patch release is confirmed yet.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
WWBN AVideo versions ≤ 29.0 allow authenticated users to configure a donation-notification webhook URL that can point to internal or metadata service IPs (e.g., 127.0.0.1, 169.254.169.254, RFC1918 addresses). When a donation occurs, the server issues a curl POST to this URL, resulting in blind SSRF. The validation uses only a format check (isValidURL()) and does not leverage the safer isSSRFSafeURL() helper. Furthermore, CURLOPT_FOLLOWLOCATION is enabled without per-hop validation, allowing HTTP 307 redirects to internal targets. A code commit has addressed the issue, but no official patch or vendor advisory confirming remediation is available.
Potential Impact
An attacker with an authenticated account can cause the AVideo server to make HTTP POST requests to internal or metadata service endpoints, potentially exposing sensitive internal resources or metadata. The vulnerability allows blind SSRF, which can be leveraged to access internal network services not otherwise reachable. The CVSS score of 5.4 (medium severity) reflects limited confidentiality and integrity impact with no availability impact. No known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. A code commit fixing the issue exists, but no official patch release or vendor advisory is currently available. Until an official fix is released, restrict authenticated user ability to configure webhook URLs or implement network-level controls to prevent server-side requests to internal or metadata IP ranges.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-04T15:17:09.329Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a028749cbff5d86108b519f
Added to database: 5/12/2026, 1:50:01 AM
Last enriched: 5/12/2026, 1:54:12 AM
Last updated: 5/12/2026, 3:48:47 AM
Views: 2
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