CVE-2021-3742
Server-Side Request Forgery (SSRF) in chatwoot/chatwoot
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.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List
Server-Side Request Forgery (SSRF) in chatwoot/chatwoot
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.
- Record
CVE-2021-3742- CVSS 3.1
- 7.9 High
CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H - CVSS 3.0
- 7.9 High
CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-918
- Updated
- 2026-11-02
EUVDEUVD-2021-27018
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.
- Record
EUVD-2021-27018- CVSS 3.1
- 7.9 High
CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gvwh-c4r7-8fm9
A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting...
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.
- Record
GHSA-gvwh-c4r7-8fm9- CVSS 3.0
- 7.9 High
CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-918
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-3742- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 3.1
- 7.9 High
CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H - CVSS 3.0
- 7.9 High
CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-918
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-3742- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-3742 is a high vulnerability (CVSS 7.9) in Chatwoot, published November 15, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 34th percentile. No source names a fixed version.