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CVE-2021-40104

Good to know:

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Date: September 27, 2021

An issue was discovered in Concrete CMS through 8.5.5. There is an SVG sanitizer bypass.

Language: PHP

Severity Score

Related Resources (4)

https://nvd.nist.gov/vuln/detail/CVE-2021-40104
https://hackerone.com/reports/1102088
https://documentation.concretecms.org/developers/introduction/version-history/856-release-notes
https://www.mend.io/vulnerability-database/CVE-2021-40104

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

Incorrect Authorization

CWE-863

Top Fix

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Upgrade Version

Upgrade to version concrete5/core - 8.5.2;concrete5/core - 9.0.0RC1;concrete5/core - 8.5.1;concrete5/core - 9.0.0;concrete5/core - 8.5.6RC1;concrete5/concrete5 - dev-backport-9975;concrete5/concrete5 - dev-dependabot/npm_and_yarn/build/lodash.template-and-download--removed;concrete5/concrete5 - dev-fix-master-to-develop-0915;concrete5/concrete5 - 8.5.6RC1;concrete5/concrete5 - 8.5.x-dev;concrete5/concrete5 - 9.0.0RC3;concrete5/concrete5 - dev-dependabot/npm_and_yarn/build/async-2.6.4;concrete5/concrete5 - 8.5.0RC2;concrete5/concrete5 - dev-marketplace-migration;concrete5/concrete5 - dev-dependabot/npm_and_yarn/build/word-wrap-1.2.4;concrete5/concrete5 - dev-fix-redis-config;concrete5/concrete5 - dev-feature/queue-updates;concrete5/concrete5 - 8.0.1

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CVSS v3.1

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

CVSS v2

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

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