Concrete CMS up to 8.5.17/9.3.3 Next/Previous Nav Block cross site scripting

Summaryinfo

A vulnerability identified as problematic has been detected in Concrete CMS up to 8.5.17/9.3.3. The impacted element is an unknown function of the component Next/Previous Nav Block Handler. The manipulation leads to cross site scripting. This vulnerability is traded as CVE-2024-8661. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Concrete CMS up to 8.5.17/9.3.3. It has been rated as problematic. This issue affects some unknown functionality of the component Next/Previous Nav Block Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

Concrete CMS versions 9.0.0 to 9.3.4 and below 8.5.18 are vulnerable to Stored XSS in the "Next&Previous Nav" block. A rogue administrator could add a malicious payload by executing it in the browsers of targeted users. The Concrete CMS Security Team gave this vulnerability a CVSS v4 score of 4.6 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N  Since the "Next&Previous Nav" block output was not sufficiently sanitized, the malicious payload could be executed in the browsers of targeted users. Thanks, Chu Quoc Khanh for reporting.

It is possible to read the advisory at documentation.concretecms.org. The identification of this vulnerability is CVE-2024-8661 since 09/10/2024. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 8.5.19 or 9.3.4 eliminates this vulnerability.

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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
• 9.3.3

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

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