CVE-2021-43353

HighCVSS 8.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-352

Affected software

Vendor	Product	Versions
Crisp Live Chat	Crisp Live Chat	>= 0.31, <= 0.31

References

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2643954%40crisp&new=2643954%40crisp&sfp_email=&sfph_mail=Issue Tracking, Patch, Third Party Advisory
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-43353Third Party Advisory
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2643954%40crisp&new=2643954%40crisp&sfp_email=&sfph_mail=Issue Tracking, Patch, Third Party Advisory
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-43353Third Party Advisory

Timeline

Published: Jan 18, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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