CVE-2023-23956

Symantec Siteminder Webagent vulnerability

CVSS

5.4

EPSS

3.1%

EPSS pct

86th

Exploited

No known

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

Affected vendor

Broadcom

Affected product

Symantec Siteminder Webagent

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2023-05-30

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 3.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 86% of all scored CVEs.

Check your external exposure to CVE-2023-23956

Confirm whether Broadcom Symantec Siteminder Webagent is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2023-23956.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-23956

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2023-23956 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2023-23956?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2023-23956.

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