Cross-Site Request Forgery Vulnerability in phpList by phpList Ltd.
CVE-2026-92806

7.2HIGH

Key Information:

Vendor

PHPlist

Status
PHPlist
Vendor
CVE Published:
16 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-92806?

Prior to version 3.6.17, phpList's mass subscriber removal form handler lacks sufficient validation for cross-site request forgery (CSRF) tokens. This flaw can be exploited by attackers who can manipulate authenticated administrators into visiting harmful websites. These crafted pages are designed to execute silent but unauthorized actions, such as deleting and blacklisting subscriber addresses without proper authentication checks, potentially compromising user data and administrative controls.

Affected Version(s)

phpList 0 < 3.6.17

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-92806 - Proof of Concept

References

https://github.com/geo-chen/oss/blob/main/phplist3.md
technical-descriptionexploit
https://github.com/phpList/phplist3/blob/v3.6.16/public_h...
technical-description
https://github.com/phpList/phplist3/blob/v3.6.17/public_h...
patch

CVSS V4

Score:
7.2
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

George Chen
.