CVE-2026-3862 XSS in Symantec App Unvalidated Reflected User Input
CVE-2026-3862 Published on March 10, 2026
Cross-Site Scripting Vulnerability in SiteMinder Administrative UI
Cross-site Scripting (XSS) allows an attacker to submit specially crafted data to the application which is returned unaltered in the resulting web page.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-3862 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-3862
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Affected Versions
Broadcom SiteMinder:- Version 12.9 is affected.
- Version 12.8.x is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.