Concrete CMS up to 8.5.17/9.3.2 RSS Displayer cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, was found in Concrete CMS up to 8.5.17/9.3.2. The affected element is an unknown function of the component RSS Displayer. The manipulation results in cross site scripting. This vulnerability was named CVE-2024-4350. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Concrete CMS up to 8.5.17/9.3.2. It has been classified as problematic. Affected is some unknown functionality of the component RSS Displayer. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

Concrete CMS versions 9.0.0 to 9.3.2 and below 8.5.18 are vulnerable to Stored XSS in RSS Displayer when user input is stored and later embedded into responses. A rogue administrator could inject malicious code into fields due to insufficient input validation. The Concrete CMS security team gave this vulnerability a CVSS v3.1 score of 3.0 with a vector of AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator  and a CVSS v4 score of 2.1 with vector CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N  Thanks, m3dium for reporting.

The advisory is available at github.com. This vulnerability is traded as CVE-2024-4350 since 04/30/2024. The exploitability is told to be difficult. It is possible to launch the attack remotely. Additional levels of successful authentication are necessary for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 8.5.18 or 9.3.3 eliminates this vulnerability. The upgrade is hosted for download at documentation.concretecms.org. Applying the patch c08d9671cec4e7afdabb547339c4bc0bed8eab06 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Content Management System

Vendor

• Concrete

Name

• CMS

Version

• 8.5.0
• 8.5.1
• 8.5.2
• 8.5.3
• 8.5.4
• 8.5.5
• 8.5.6
• 8.5.7
• 8.5.8
• 8.5.9
• 8.5.10
• 8.5.11
• 8.5.12
• 8.5.13
• 8.5.14
• 8.5.15
• 8.5.16
• 8.5.17
• 9.3.0
• 9.3.1
• 9.3.2

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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