VULNERABILITY INTELLIGENCE

CVE-2021-43353

CVSS score8.8 HIGH

EPSS probability0.61%

CISA KEVNot currently listed

Published2022-01-18

Last modified2026-06-17

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

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.

Weakness classification

security@wordfence.com: CWE-352
nvd@nist.gov: CWE-352

Primary references

security@wordfence.com — Issue Tracking, Patch, Third Party Advisory
security@wordfence.com — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory