What is CVE-2026-22704?

CVE-2026-22704 is a high-severity vulnerability in Haxtheweb Issues, classified under Cross-site Scripting. CVSS score: 8.1/10. Published 2026-01-10.

How severe is CVE-2026-22704?

High severity. CVSS v3 base score is 8.1 out of 10.

XSS in Haxtheweb Issues

CVE-2026-22704

HAX CMS helps manage microsite universe with PHP or NodeJs backends. In versions 11.0.6 to before 25.0.0, HAX CMS is vulnerable to stored XSS, which could lead to account takeover. This issue has been patched in version 25.0.0.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (25.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H.

Affected products

Haxtheweb Issues — versions >= 11.0.6, < 25.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

https://github.com/haxtheweb/issues/security/advisories/GHSA-3fm2-xfq7-7778 (x_refsource_CONFIRM)
https://github.com/haxtheweb/haxcms-nodejs/commit/317a8ae29f88be389f7cfeffaef416957122d97e (x_refsource_MISC)
https://github.com/haxtheweb/haxcms-nodejs/releases/tag/v25.0.0 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-22704?: CVE-2026-22704 is a high-severity vulnerability in Haxtheweb Issues, classified under Cross-site Scripting. CVSS score: 8.1/10. Published 2026-01-10.
How severe is CVE-2026-22704?: High severity. CVSS v3 base score is 8.1 out of 10.