How severe is CVE-2021-3741?

CVE-2021-3741 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-3741 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3741?

CVE-2021-3741 affects Chatwoot. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3741?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2021-3741 have an EU (EUVD) identifier?

Yes. CVE-2021-3741 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-27017.

When was CVE-2021-3741 published?

CVE-2021-3741 was published on 2024-11-15 and last updated on 2026-06-17.

CVE-2021-3741

CVE-2021-3741 is a medium-severity vulnerability in Chatwoot with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2021-27017
Weakness: CWE-79
Affected product: Chatwoot
Published: 2024-11-15
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2021-3741?: 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.
How severe is CVE-2021-3741?: CVE-2021-3741 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-3741 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3741?: CVE-2021-3741 affects Chatwoot. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3741?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2021-3741 have an EU (EUVD) identifier?: Yes. CVE-2021-3741 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-27017.
When was CVE-2021-3741 published?: CVE-2021-3741 was published on 2024-11-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:chatwoot:chatwoot:*:*:*:*:*:*:*:*

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