CVE-2024-56156

Halo Vulnerable to Stored XSS and RCE via File Upload Bypass

CVSS 5.5 MEDIUMEPSS 0.6%CWE-79

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.5EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

25 Apr 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

halo-dev · halo

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References

https://github.com/halo-dev/halo/commit/24f8d7b57127e2607ec05adb7c912b3decddeb99 https://github.com/halo-dev/halo/pull/7149 https://github.com/halo-dev/halo/security/advisories/GHSA-99mc-ch53-pqh9