What is CVE-2023-37534?

CVE-2023-37534 is a high-severity vulnerability in Hcl Software Leap, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2025-04-24.

How severe is CVE-2023-37534?

High severity. CVSS v3 base score is 7.1 out of 10.

XSS in Hcl Software Leap

CVE-2023-37534

Insufficient URI protocol whitelist in HCL Leap allows script injection through query parameters.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2025-04-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (13.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.3% 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

Hcl Software Leap — versions < 9.3.4
Hcltech Hcl Leap

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

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

Frequently asked questions

What is CVE-2023-37534?: CVE-2023-37534 is a high-severity vulnerability in Hcl Software Leap, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2025-04-24.
How severe is CVE-2023-37534?: High severity. CVSS v3 base score is 7.1 out of 10.