CVE-2024-3801 — Sites managed in S@M CMS (Concept Intermedia) might be vulnerable to Reflected X

Sites managed in S@M CMS (Concept Intermedia) might be vulnerable to Reflected XSS via including scripts in one of GET header parameters. Only a part of observed services is vulnerable, but since vendor has not investigated the root problem, it is hard to determine when the issue

01What is this vulnerability?

Sites managed in S@M CMS (Concept Intermedia) might be vulnerable to Reflected XSS via including scripts in one of GET header parameters. Only a part of observed services is vulnerable, but since vendor has not investigated the root problem, it is hard to determine when the issue appears.

02Affected products

Vendor	Product	Versions
Concept Intermedia	S@M CMS	0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

08Timeline

• Published: 2024-06-28T12:44:38.927Z
• Last modified: 2024-10-30T15:49:56.392Z

09References

• cert.pl — https://cert.pl/en/posts/2024/06/CVE-2024-3800
• cert.pl — https://cert.pl/posts/2024/06/CVE-2024-3800