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.
History

Wed, 19 Aug 2026 06:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Broken Link Checker < 2.4.12 - Unauthenticated RCE via Query Variable Injection
References

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-08-19T06:00:20.316Z

Reserved: 2026-08-05T12:42:03.011Z

Link: CVE-2026-18937

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-19T06:17:38.847

Modified: 2026-08-19T06:17:38.847

Link: CVE-2026-18937

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.