CVE-2026-21821 HCL BigFix SCM Reporting is affected by vulnerabilities in jQuery
Outdated jQuery library in HCL BigFix SCM Reporting allows client-side attacks like XSS, requiring an upgrade to a supported version.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-21821?
CVE-2026-21821 is a high-severity cross-site scripting vulnerability in HCLSoftware BigFix SCM Reporting, published on 13 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The HCL BigFix SCM Reporting site contains an outdated and unsupported version of the jQuery 1.x library. Since jQuery 1.x has reached end-of-life and no longer receives security updates, it may expose the application to publicly known security weaknesses and increase the risk of client-side attacks such as Cross-Site Scripting (XSS) or manipulation through vulnerable third-party components.
Weakness: CWE-1104
Which versions are affected by CVE-2026-21821?
How do I fix CVE-2026-21821?
No fix has been published for CVE-2026-21821 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-21821 being exploited?
There is no known exploitation of CVE-2026-21821 in the wild and no public exploit code.
Sources
Also known as GHSA-246p-fh28-56r9.