Crisp Live Chat <= 0.31 Cross-Site Request Forgery to Stored Cross-Site Scripting
Priority MEDIUM 41CWE-352Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-352.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00608 49th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Crisp Live Chat | Crisp Live Chat | 0.31 – 0.31 | — | No fix listed | CNA |
- Crisp Live Chat VendorCrisp Live Chat Affected 0.31 – 0.31 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-43353
- 2026-10-03 Alias added: GHSA-mrwr-9wqr-6fc2
References
More Crisp vulnerabilities
- TI-2024-18566 WordPress Crisp – Live Chat and Chatbot plugin <= 0.44 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
Sources
- CVE-2021-43353 · CVE Program
- CVE-2021-43353 · NVD
- FIRST EPSS
- GHSA-mrwr-9wqr-6fc2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences