CVE-2026-18937

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 ...

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 users to overwrite arbitrary PHP global variables, and to execute arbitrary code on the server when a classic non-block ...

CVE-2026-18937: Improper Control of Generation of Code

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 ...

PT-2026-78299

Name of the Vulnerable Software and Affected Versions Broken Link Checker versions prior to 2.4.12 Description On sites using plain permalinks, the plugin fails to limit the query variables accepted from user input. This allows unauthenticated users to overwrite arbitrary PHP global variables and...