CVE-2026-18937 — Broken Link Checker < 2.4.12 - Unauthenticated RCE via Query Variable Injection
The Broken Link Checker WordPress plugin before 2.4.12 does not limit which query variables it accepts from user input on sites using plain permalinks, allowing unauthenticated …
Published: 2026-08-19 · CVSS: 9.0 · CVSS 3.1
The Broken Link Checker WordPress plugin before 2.4.12 does not limit which query variables it accepts from user input on sites using plain permalinks, allowing unauthenticated users to overwrite arbitrary PHP global variables, and to execute arbitrary code on the server when a classic (non-block) is active.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7