3.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2022-30120

CVE-2022-30120: Cross site scripting in Concrete CMS

XSS in /dashboard/blocks/stacks/view_details/ - old browsers only. When using an older browser with built-in XSS protection disabled, insufficient sanitation where built urls are outputted can be exploited for Concrete 8.5.7 and below as well as Concrete 9.0 through 9.0.2 to allow XSS. This cannot be exploited in modern-day web browsers due to an automatic input escape mechanism. Concrete CMS Security team ranked this vulnerability 3.1with CVSS v3.1 Vector AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N. Sanitation has been added where built urls are output.

(GitHub Advisory)

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CVE-2022-30120

CVE-2022-30120:

3.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
concrete5/core	composer	>= 9.0.0, < 9.1.0	9.1.0
concrete5/core	composer	< 8.5.8	8.5.8

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from unsanitized URL construction in the stacks dashboard interface. The release notes explicitly mention adding sanitation to 'Dashboard Stacks page sort URLs'. In MVC frameworks like Concrete CMS, this would involve: 1) Controller methods handling URL parameters, and 2) View templates outputting those parameters. While exact code isn't available, the pattern matches common XSS vulnerabilities where sort parameters (user-controlled) are reflected in links without encoding. The high confidence for the controller comes from the explicit mention of dashboard stack page fixes; medium confidence for the template due to typical template-based XSS patterns.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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