CVE-2023-37534: Insufficient URI protocol whitelist in HCL Leap allows script injection through query parameters.

Q: How do I fix CVE-2023-37534?

hcl leap: upgrade to 9.3.4. Exact commands for each OS are on this page.

Q: Is CVE-2023-37534 being exploited?

CVE-2023-37534 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-37534 affect?

CVE-2023-37534 affects hcl leap. Severity is high (CVSS 7.1). Insufficient URI protocol whitelist in HCL Leap allows script injection through query parameters.

Routine

HIGH 7.1UPGRADE

CVE-2023-37534 is a high-severity flaw (CVSS 7.1) affecting hcl leap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 85%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-04-24
Last modified	2026-06-17

Publisher (CNA): HCL Software · Vendor: hcltech

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-04-24 17:15 UTCPublished CVE record published
2026-06-17 06:08 UTCUpdated Record last modified

hcltech hcl leap UPGRADE

Affected: < 9.3.4

Fixed in: 9.3.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy hcl-leap || rpm -q hcl-leap || hcl-leap --version

2. UPGRADE to 9.3.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade hcl-leap

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade hcl-leap

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-37534?

hcl leap: upgrade to 9.3.4. Exact commands for each OS are on this page.

Is CVE-2023-37534 being exploited?

CVE-2023-37534 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-37534 affect?

CVE-2023-37534 affects hcl leap. Severity is high (CVSS 7.1). Insufficient URI protocol whitelist in HCL Leap allows script injection through query parameters.

How urgent is CVE-2023-37534?

Priority 29/100. High severity

Related CVEs

CVE-2024-30148 MEDIUM 4.1 UPGRADE Improper access control of endpoint in HCL Leap allows certain admin users to import applications from the ser
CVE-2024-30147 MEDIUM 6.5 UPGRADE Multiple vectors in HCL Leap allow client-side script injection in the authoring environment and deployed appl
CVE-2024-30127 LOW 3.2 UPGRADE Missing "no cache" headers in HCL Leap permits sensitive data to be cached.
CVE-2024-30114 LOW 3.7 UPGRADE Insufficient sanitization in HCL Leap allows client-side script injection in the authoring environment.
CVE-2024-30113 MEDIUM 6.3 UPGRADE Insufficient sanitization policy in HCL Leap allows client-side script injection in the deployed application t

References

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