CVE-2024-56156: Halo Vulnerable to Stored XSS and RCE via File Upload Bypass
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.
Classification
CVE ID: CVE-2024-56156
CVSS Base Severity: MEDIUM
CVSS Base Score: 5.5
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L/E:P
Problem Types
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Affected Products
Vendor: halo-dev
Product: halo
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.28% (probability of being exploited)
EPSS Percentile: 51.44% (scored less or equal to compared to others)
EPSS Date: 2025-05-24 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2024-56156https://github.com/halo-dev/halo/security/advisories/GHSA-99mc-ch53-pqh9
https://github.com/halo-dev/halo/pull/7149