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CVE-2023-44760

MediumPublished

Multiple Cross Site Scripting (XSS) vulnerabilities in Concrete CMS v.9.2.1 allow an attacker to execute arbitrary code via a crafted script to the Header...

Published: Oct 23, 2023
Updated: Aug 2, 2024
Assigning CNA: mitre
Evidence observed: Aug 4, 2026

Primary CVSS

4.8/ 10Medium

nvd · CVSS 3.1

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

EPSS probability estimate

0.6%

Low · next 30 days

Percentile: 48.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Multiple Cross Site Scripting (XSS) vulnerabilities in Concrete CMS v.9.2.1 allow an attacker to execute arbitrary code via a crafted script to the Header and Footer Tracking Codes of the SEO & Statistics. NOTE: the vendor disputes this because these header/footer changes can only be made by an admin, and allowing an admin to place JavaScript there is an intentional customization feature. Also, the exploitation method claimed by "sromanhu" does not provide any access to a Concrete CMS session, because the Concrete CMS session cookie is configured as HttpOnly.

Sources

CVE-2023-44760_ConcreteCMS-Stored-XSS---TrackingCodesPoC
Multiple Cross Site Scripting vulnerability in ConcreteCMS v.9.2.1 allows a local attacker to execute arbitrary code via a crafted script to the Header and Footer Tracking Codes of the SEO & Statistics

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