CVE-2026-36829

CRITICAL

Panabit PAP-XM320 <= v7.7 - Authentication Bypass via Directory Traversal in Session Cookie Validation

Title source: llm

Description

An authentication bypass vulnerability exists in the embedded HTTP server of Panabit PAP-XM320 up to and including v7.7. The server validates session cookies using a filesystem existence check based on a user-controlled cookie value without proper sanitization, allowing directory traversal and bypass of authentication.

References (2)

Core 2

Core References

https://www.panabit.com/

https://secreu.notion.site/CVE-2026-36829-3652c0ab461580e19704e87b18865714

Scores

CVSS v3 9.8

EPSS 0.0127

EPSS Percentile 65.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

CWE

CWE-22 CWE-287

Status published

Published May 19, 2026

Tracked Since May 19, 2026