CVE•Published 2026-08-19•Modified 2026-08-26•1 article on news•6 live references•NVD data
CVE-2026-18937
Vulnerability data via NVD (ingested)
CVSS v3.1
9.0
CRITICAL
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS percentile
33
Exploit Prediction Scoring System · top 67% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2026-08-19
Modified 2026-08-26
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.
More intel sources (5)
Shodan report
vuln:CVE-2026-18937Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-18937Censys host search filtered to this CVE id.
grep.app
CVE-2026-18937Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-18937GitHub code search for direct mentions.
Google dork
"CVE-2026-18937" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.