AUGUST 14, 2026
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Case File

CVE-2026-73481

MEDIUM · CVSS 5.4 EPSS 0.15% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-13 · Last synced 2026-08-14

CyberRota Analysis

AI-Generated

The vulnerability affects phpList versions prior to 3.7.0-RC5, where insufficient CSRF token validation on the bounce rule deletion endpoint allows remote attackers to exploit this weakness. By crafting a malicious URL, an attacker can trick an authenticated administrator into executing a GET request that deletes arbitrary bounce rules from the database without proper authorization. Organizations using phpList should prioritize this issue to protect against potential unauthorized data manipulation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-73481
Severity
MEDIUM
CVSS
5.4
EPSS
0.15%

Original NVD Description

phpList before 3.7.0-RC5 fail to enforce CSRF token validation on the bounce rule deletion endpoint (bouncerules.php / bouncerule.php). The deletion is performed via a GET request (?page=bouncerules&del=N), and the central CSRF check (verifyCsrfGetToken) is invoked with enforce=false, so it only validates the token when a 'tk' parameter is present. A remote attacker can trick an authenticated administrator into loading a crafted URL (e.g., embedded in an image tag) to delete arbitrary bounce rules from the phplist_bounceregex table without a valid CSRF token.