CVE-2024-56156

CriticalCVSS 9.0/10Last modified Jun 17, 2026

Description

Halo is an open source website building tool. Prior to version 2.20.13, a vulnerability in Halo allows attackers to bypass file type validation controls. This bypass enables the upload of malicious files including executables and HTML files, which can lead to stored cross-site scripting attacks and potential remote code execution under certain circumstances. This issue has been patched in version 2.20.13.

Metrics

CVSS 3.1 9.0/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
halo-dev	halo	< 2.20.13

References

https://github.com/halo-dev/halo/commit/24f8d7b57127e2607ec05adb7c912b3decddeb99
https://github.com/halo-dev/halo/pull/7149Issue Tracking
https://github.com/halo-dev/halo/security/advisories/GHSA-99mc-ch53-pqh9Exploit, Mitigation, Vendor Advisory

Timeline

Published: Apr 25, 2025
Last modified: Jun 17, 2026
NVD status: Modified

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