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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/geo-chen/oss/blob/main/phplist3.md
disclosure@vulncheck.com
https://github.com/phpList/phplist3
disclosure@vulncheck.com
https://github.com/phpList/phplist3/blob/v3.6.16/public_html/lists/admin/massre…
disclosure@vulncheck.com
https://github.com/phpList/phplist3/blob/v3.6.17/public_html/lists/admin/massre…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/phplist-before-3.6.17-cross-site-request-f…
disclosure@vulncheck.com