Cyber Resilience

CVE-2021-27788

High

Published: 10 March 2023

Published
10 March 2023
Modified
27 February 2025
KEV Added
Patch
CVSS Score v3.1 8.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
EPSS Score 0.0047 64.9th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-27788 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Hcltech Verse. Its CVSS base score is 8.3 (High).

Operationally, ranked in the top 35.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

HCL Verse is susceptible to a Cross Site Scripting (XSS) vulnerability. By tricking a user into clicking a crafted URL, a remote unauthenticated attacker could execute script in a victim's web browser to perform operations as the victim and/or steal…

more

the victim's cookies, session tokens, or other sensitive information.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

hcltech
verse
2.0 — 3.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References