CSRF in Crisp
CVE-2021-43353
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.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Crisp
- Crisp Live Chat — versions 0.31
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/vulnerability-advisories/ (Third Party Advisory)
- plugins.trac.wordpress.org/changeset (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2021-43353?
- CVE-2021-43353 is a high-severity vulnerability in Crisp, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2022-01-18.
- How severe is CVE-2021-43353?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-43353 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.