CVE-2024-8661: Concrete CMS versions 9.0.0 to 9.3.3 and below 8.5.19 are vulnerable to Stored XSS in the "Next&Previous Nav" block. A rogue administrator could add a…

PriorityP420medium4.8CVSS 3.1

AVNACLPRHUIRSCCLILAN

EPSS

0.42%

33.3th percentile

Concrete CMS versions 9.0.0 to 9.3.3 and below 8.5.19 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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
concrete5	concrete5	>= 0 < 8.5.19	8.5.19
concrete5	concrete5	>= 9.0.0 < 9.3.4	9.3.4
concrete_cms	concrete_cms	>= 5.0.0 < 8.5.19	8.5.19
concrete_cms	concrete_cms	>= 9.0.0 < 9.3.4	9.3.4
concretecms	concrete_cms	< 8.5.19	8.5.19
concretecms	concrete_cms	>= 9.0 < 9.3.4	9.3.4

CVSS provenance

nvdv3.14.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

nvdv4.04.6MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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