CSRF in Phplist
CVE-2026-92806
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.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (18.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/geo-chen/oss/blob/main/phplist3.md (technical-description, exploit)
- github.com/phpList/phplist3/blob/v3.6.16/public_html/lists/admin/massremove.php (technical-description)
- github.com/phpList/phplist3/blob/v3.6.17/public_html/lists/admin/massremove.php (patch)
- github.com/phpList/phplist3 (product)
- www.vulncheck.com/advisories/phplist-before-3.6.17-cross-site-request-forgery-v… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-92806?
- CVE-2026-92806 is a high-severity vulnerability in Phplist, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.1/10. Published 2026-09-16.
- How severe is CVE-2026-92806?
- High severity. CVSS v3 base score is 8.1 out of 10.