What is CVE-2026-48527?

CVE-2026-48527 is a high-severity vulnerability in Haxtheweb Haxcms-nodejs, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-05-29.

How severe is CVE-2026-48527?

High severity. CVSS v3 base score is 8.7 out of 10.

XSS in Haxtheweb Haxcms-nodejs

CVE-2026-48527

HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting (XSS) vulnerability in the `/system/api/saveNode` endpoint. An authenticated user with a…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (10.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

Haxtheweb Haxcms-nodejs — versions < 26.0.1
Haxtheweb Haxcms-php — versions < 26.0.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-48527?: CVE-2026-48527 is a high-severity vulnerability in Haxtheweb Haxcms-nodejs, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-05-29.
How severe is CVE-2026-48527?: High severity. CVSS v3 base score is 8.7 out of 10.