CVE-2021-3742 json
Server-Side Request Forgery (SSRF) in chatwoot/chatwoot
published 2024-11-15 23 mo ago modified 2026-06-17 4 mo ago also EUVD-2021-27018
- cvss
- 7.9
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
Summary
A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.5.0. The vulnerability allows an attacker to upload an SVG file containing a malicious SSRF payload. When the SVG file is used as an avatar and opened in a new tab, it can trigger the SSRF, potentially leading to host redirection.
Patch / fix
- chatwoot chatwoot/chatwoot 2.5.0
- chatwoot chatwoot 2.5.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 23 mo ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.9 | CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H |
| CISA ADP | 3.1 | 7.9 | CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 7.9 | CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H |
Affected products
- chatwoot chatwoot/chatwoot
- chatwoot chatwoot
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
Sources
- CVE List CVE-2021-3742
- NVD CVE-2021-3742
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