Vulnerability · Published Sep 16, 2026 · Assigned by VulnCheck
CVE-2026-92806phpList before 3.6.17 Cross-Site Request Forgery via massremove.php
High 8.1
In plain English
A high-severity cross-site request forgery in phpList from phpList. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.3%top 81.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
phpList versions before 3.6.17 fail to validate cross-site request forgery tokens in the mass subscriber removal form handler. Attackers can induce logged-in administrators to visit crafted pages that silently delete and blacklist arbitrary subscriber addresses without authentication verification.
Affected products (as reported)
Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
References
- Researcher write-up technical-description, exploit
- the handler acts on POST data with no token check technical-description
- 3.6.17 requires verifyCsrfGetToken patch
- https://github.com/phpList/phplist3 product
- VulnCheck Advisory: phpList before 3.6.17 Cross-Site Request Forgery via massremove.php third-party-advisory