Cross-Site Scripting in Backdrop CMS by Backdrop
CVE-2019-19901

4.8MEDIUM

Key Information:

Vendor

Backdropcms

Status
Backdrop Cms
Vendor
CVE Published:
19 December 2019

What is CVE-2019-19901?

A security issue in Backdrop CMS allows for Cross-Site Scripting (XSS) attacks due to insufficient output filtering of block descriptions created by administrators. This vulnerability affects versions prior to 1.13.5 and 1.14.2, where an attacker with permission to create custom blocks can exploit the flaw by crafting a malicious block description. When an administrator configures the layout, the attacker's script could execute, potentially compromising the web application.

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References

https://backdropcms.org/security/backdrop-sa-core-2019-013
x_refsource_MISC

CVSS V3.1

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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