CVE-2026-79816 Unauthenticated DOM-Based Cross-Site Scripting (XSS) Vulnerability in the ClearPass Policy Manager Client Interface
Unauthenticated attackers can execute arbitrary scripts in victims' browsers via DOM-based XSS in the ClearPass Policy Manager client interface.
- 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-2026-79816?
CVE-2026-79816 is a medium-severity cross-site scripting vulnerability in Hewlett Packard Enterprise (HPE) ClearPass Policy Manager (CPPM), published on 6 Oct 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
A vulnerability in a client interface of HPE Networking ClearPass Policy Manager could allow an unauthenticated remote attacker to conduct a DOM-based cross-site scripting (XSS) attack against a user of the affected client interface. Successful exploitation could allow an attacker to execute arbitrary script code in a victim's browser context within the affected client interface.
Weakness: CWE-79
Which versions are affected by CVE-2026-79816?
How do I fix CVE-2026-79816?
No fix has been published for CVE-2026-79816 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-2026-79816 being exploited?
There is no known exploitation of CVE-2026-79816 in the wild and no public exploit code.
Sources
Also known as GHSA-hq55-2fgh-r8wc.