What is CVE-2023-23956?

CVE-2023-23956 is a medium-severity vulnerability in Broadcom Symantec Siteminder Webagent, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-05-30.

How severe is CVE-2023-23956?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Broadcom Symantec Siteminder Webagent

CVE-2023-23956

A user can supply malicious HTML and JavaScript code that will be executed in the client browser

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-05-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.031 (87.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: 0.000

Affected products

Broadcom Symantec Siteminder Webagent — versions 12.52
Symantec Siteminder Webagent — versions 12.5.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2023-23956?: CVE-2023-23956 is a medium-severity vulnerability in Broadcom Symantec Siteminder Webagent, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-05-30.
How severe is CVE-2023-23956?: Medium severity. CVSS v3 base score is 5.4 out of 10.