CVE-2021-3741
Stored Cross-site Scripting (XSS) in chatwoot/chatwoot
A stored cross-site scripting (XSS) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.6. The vulnerability occurs when a user uploads an SVG file containing a malicious XSS payload in the profile settings. When the avatar is opened in a new page, the custom JavaScript code is executed, leading to potential security risks.
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
- Low
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Stored Cross-site Scripting (XSS) in chatwoot/chatwoot
A stored cross-site scripting (XSS) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.6. The vulnerability occurs when a user uploads an SVG file containing a malicious XSS payload in the profile settings. When the avatar is opened in a new page, the custom JavaScript code is executed, leading to potential security risks.
- Record
CVE-2021-3741- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:H - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-27017
A stored cross-site scripting (XSS) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.6. The vulnerability occurs when a user uploads an SVG file containing a malicious XSS payload in the profile settings. When the avatar is opened in a new page, the custom JavaScript code is executed, leading to potential security risks.
- Record
EUVD-2021-27017- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jwrg-4wf2-p7jw
A stored cross-site scripting (XSS) vulnerability was discovered in chatwoot/chatwoot, affecting...
A stored cross-site scripting (XSS) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.6. The vulnerability occurs when a user uploads an SVG file containing a malicious XSS payload in the profile settings. When the avatar is opened in a new page, the custom JavaScript code is executed, leading to potential security risks.
- Record
GHSA-jwrg-4wf2-p7jw- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:H - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
A stored cross-site scripting (XSS) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.6. The vulnerability occurs when a user uploads an SVG file containing a malicious XSS payload in the profile settings. When the avatar is opened in a new page, the custom JavaScript code is executed, leading to potential security risks.
- Record
CVE-2021-3741- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 3.0
- 7.8 High
CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:H - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
A stored cross-site scripting (XSS) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.6. The vulnerability occurs when a user uploads an SVG file containing a malicious XSS payload in the profile settings. When the avatar is opened in a new page, the custom JavaScript code is executed, leading to potential security risks.
- Record
CVE-2021-3741- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - 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-2021-3741 is a high vulnerability (CVSS 7.8) in Chatwoot, published November 15, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 22nd percentile. No source names a fixed version.