CVE-2021-43353 - CVE House
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Status published High CVE-2021-43353

Crisp Live Chat <= 0.31 Cross-Site Request Forgery to Stored Cross-Site Scripting

Vulnerability Description

The Crisp Live Chat WordPress plugin is vulnerable to Cross-Site Request Forgery due to missing nonce validation via the crisp_plugin_settings_page function found in the ~/crisp.php file, which made it possible for attackers to inject arbitrary web scripts in versions up to, and including 0.31.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • José Aguilera

Affected Vendor

Crisp Live Chat

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Affected Software

Crisp Live Chat
Vulnerable Versions:
0.31

Timeline

Official Publish: January 18th, 2022
Last Modified: January 31st, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)