SEPTEMBER 19, 2026
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Case File

CVE-2026-67350

MEDIUM · CVSS 4.3 EPSS 0.21% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-31 · Last synced 2026-08-30

CyberRota Analysis

AI-Generated

The vulnerability in Serendipity prior to version 2.6.1 allows unauthenticated attackers to exploit an open redirect in exit.php, enabling them to redirect users to arbitrary external sites via a malicious Base64-encoded URL parameter. This can facilitate phishing attacks, malware delivery, or evasion of URL reputation filters by leveraging the trusted blog domain. Organizations using affected versions, particularly those with the Track Exits plugin configured for comment redirection, should prioritize patching to mitigate these risks.

Public Exploit Signal

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

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-67350
Severity
MEDIUM
CVSS
4.3
EPSS
0.21%

Original NVD Description

Serendipity before 2.6.1 contains an open redirect vulnerability in exit.php that allows unauthenticated attackers to redirect users to arbitrary external sites by supplying a malicious Base64-encoded url parameter when the Track Exits plugin is configured with commentredirection set to s9y. Attackers can craft trusted-looking URLs leveraging the legitimate blog domain to conduct phishing, deliver malware, or bypass URL reputation filters.