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CVE-2021-22953

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Date: September 23, 2021

A CSRF in Concrete CMS version 8.5.5 and below allows an attacker to clone topics which can lead to UI inconvenience, and exhaustion of disk space.Credit for discovery: "Solar Security Research Team"

Language: PHP

Severity Score

Severity Score

Weakness Type (CWE)

Cross-Site Request Forgery (CSRF)

CWE-352

Top Fix

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Upgrade Version

Upgrade to version concrete5/concrete5 - 8.5.x-dev;concrete5/concrete5 - dev-feature/composer-php8-support;concrete5/concrete5 - dev-dependabot/npm_and_yarn/build/postcss-and-vue-loader-8.4.31;concrete5/concrete5 - dev-update-deps-85;concrete5/concrete5 - dev-feature/usable-welcome-page;concrete5/concrete5 - dev-dependabot/npm_and_yarn/build/json5-1.0.2;concrete5/concrete5 - dev-fix-redis-config;concrete5/concrete5 - dev-dependabot/npm_and_yarn/build/async-2.6.4;concrete5/concrete5 - 8.5.0RC2;concrete5/concrete5 - dev-backport-9975;concrete5/concrete5 - dev-feature-multisite-licenses;concrete5/concrete5 - dev-marketplace-migration;concrete5/concrete5 - dev-security-fixes-110623;concrete5/concrete5 - dev-dependabot/npm_and_yarn/build/word-wrap-1.2.4;concrete5/concrete5 - 8.5.7;concrete5/concrete5 - 8.5.6;concrete5/concrete5 - 9.0.0RC1;concrete5/concrete5 - dev-dependabot/npm_and_yarn/build/lodash.template-and-download--removed;concrete5/concrete5 - dev-allow-install-php-8.2;concrete5/core - 8.5.1;concrete5/core - 8.5.2;concrete5/core - 8.4.2;concrete5/core - 9.0.0RC1;concrete5/core - 8.5.6RC1

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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