ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2026-3862

Cross-site Scripting (XSS) allows an attacker to submit specially crafted data to the application which is returned unaltered in the resulting web page.

Published Mar 10, 2026 · catalog updated Jun 17, 2026 · symantec siteminder

Check if you run it

No confirmed exploitation is on record for CVE-2026-3862. EPSS is 0.25%. Act only if a listed version of symantec siteminder is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.6
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.25%
Remediation
Advisory link
Affected products
cpe broadcom/symantec siteminder

Cross-site Scripting (XSS) allows an attacker to submit specially crafted data to the application which is returned unaltered in the resulting web page.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe broadcom/symantec siteminder12.9

How to fix CVE-2026-3862

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-3862. EPSS is 0.25%. Act only if a listed version of symantec siteminder is installed.

Which versions are affected?

Compare what you have installed with broadcom/symantec siteminder 12.9. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 0.25%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 10, 2026 · NIST NVD

    Detected

    Cross-site Scripting (XSS) allows an attacker to submit specially crafted data to the application which is returned unaltered in the resulting web page.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Cross-site Scripting (XSS) allows an attacker to submit specially crafted data to the application which is returned unaltered in the resulting web page.

Sources

  • CVE.orgVulnerability recordCVE-2026-3862

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-3862

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-3862

    Cross-site Scripting (XSS) allows an attacker to submit specially crafted data to the application which is returned unaltered in the resulting web page.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.