SEPTEMBER 18, 2026
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Case File

CVE-2026-61639

HIGH · CVSS 8.5 EPSS 0.35% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-31 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

Wallos versions prior to 4.9.6 are vulnerable to a directory traversal attack due to improper validation of entry names in ZIP file uploads, allowing an attacker to write a web shell to the webroot. This vulnerability can lead to unauthorized access and potential full system compromise. Organizations using Wallos should prioritize upgrading to version 4.9.6 or later to mitigate this high-severity risk.

Public Exploit Signal

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

GitHub PoC Links
github.com ↗ github.com ↗ github.com ↗ github.com ↗

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

CVE
CVE-2026-61639
Severity
HIGH
CVSS
8.5
EPSS
0.35%

Original NVD Description

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.6, POST /endpoints/db/restore.php calls ZipArchive::extractTo() without validating entry names for ../ sequences. Admin uploads crafted zip with entry logos/../../endpoints/shell.php to write webshell to webroot. Extension filter only applies to post-extraction logo copy step. This issue has been patched in version 4.9.6.