CVE-2026-78397
Link Library < 7.9.6 - Unauthenticated SSRF via Reciprocal Link Validation
- State
- Published
- Severity
- 4.0 Medium
- Published
- Sep 25, 2026
- Updated
- Sep 25, 2026
- Reserved
- Aug 24, 2026
Description
The Link Library WordPress plugin before 7.9.6 does not validate the destination of a user-supplied URL before falling back to an unprotected fetch when its safe request is rejected, allowing unauthenticated visitors to make the site issue requests to hosts on its internal network and to learn from the response whether an internal service answered.
Versions below 7.8.8 are covered by CVE-2025-68600; this entry covers 7.8.8 through 7.9.5, where that fix was incomplete. Exploitation requires the site owner to have published the Link Library WordPress plugin before 7.9.6's public link submission form with reciprocal-link validation enabled.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.0 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N | CISA-ADP |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
Link LibraryUnknown |
|
References
- https://wpscan.com/vulnerability/7842ef44-582c-40a8-8f3c-cf8abebaf7fb/exploitvdb-entrytechnical-description
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