CVE-2026-18937

critical · 9

A public exploit / detection template exists

Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates →

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.

CVSS

2.0%

EPSS (exploit prob.)

81st

EPSS percentile

2026-08-19

Published

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-94

References

https://wpscan.com/vulnerability/a23b76eb-107d-4e02-8eae-c3c5fa5b003d/

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-18937