CVE-2026-78397CWE-918ssrf

CVE-2026-78397

Medium · published September 25, 2026

CVSS v3.1
4.0
EPSS
0%
Percentile
5.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.0 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00162 · 5.1th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-09-25T11:16Z
References (1)
EPSS history
Timeline
  • 26 SEP 03:26Z
    EPSS moved — → 0%
    epss
  • 25 SEP 06:00Z
    Link Library < 7.9.6 - Unauthenticated SSRF via Reciprocal Link Validation
    cvelistv5