What is CVE-2026-21825?

CVE-2026-21825 is a medium-severity vulnerability in Hclsoftware Dx Compose, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-06-05.

How severe is CVE-2026-21825?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Hclsoftware Dx Compose

CVE-2026-21825

HCL Digital Experience Compose is affected by a reflected cross-site scripting (XSS) vulnerability in the search center. An attacker could execute arbitrary JavaScript in the victim's browser.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-06-05 · last modified 2026-07-23.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (3.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Hclsoftware Dx Compose — versions 9.5
Hcltech Digital Experience — versions 9.5
Hcltech Digital Experience Compose — versions 9.5

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

support.hcl-software.com/csm (Vendor Advisory)

Frequently asked questions

What is CVE-2026-21825?: CVE-2026-21825 is a medium-severity vulnerability in Hclsoftware Dx Compose, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-06-05.
How severe is CVE-2026-21825?: Medium severity. CVSS v3 base score is 6.1 out of 10.