CVE-2025-51857

MEDIUM

Published Aug 5, 2025 Modified Apr 15, 2026 CWE-79

Description

The reconcile method in the AttachmentReconciler class of the Halo system v.2.20.18LTS and before is vulnerable to XSS attacks.

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CVSS v3.1 Score

6.1

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

References

Other References

http://halo.com https://gist.github.com/this1slwl/d714514635119159607c14faebbbcf20 https://github.com/halo-dev/halo

Frequently Asked Questions

What is CVE-2025-51857? +

The reconcile method in the AttachmentReconciler class of the Halo system v.2.20.18LTS and before is vulnerable to XSS attacks. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2025-51857? +

CVE-2025-51857 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2025-51857? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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