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CVE-2021-27781: HCL BigFix Mobile / Modern Client Management is vulnerable to stored cross-site scripting

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-05-27 · updated 2026-06-17
Weakness: CWE-79

Description

The Master operator may be able to embed script tag in HTML with alert pop-up display cookie.

Affected products

HCL Software BigFix Mobile: from 1.0 before 2.1 — fixed in 2.1
Hcltech Modern Client Management: from 1.0 before 2.1 — fixed in 2.1

How to fix

Upgrade to a fixed version: HCL Software BigFix Mobile 2.1; Hcltech Modern Client Management 2.1. Check the vendor advisory for mitigations.

References

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