What is CVE-2021-3539?

CVE-2021-3539 is a medium-severity vulnerability in Espocrm, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2021-08-04.

How severe is CVE-2021-3539?

Medium severity. CVSS v3 base score is 6.3 out of 10.

XSS in Espocrm

CVE-2021-3539

EspoCRM 6.1.6 and prior suffers from a persistent (type II) cross-site scripting (XSS) vulnerability in processing user-supplied avatar images. This issue was fixed in version 6.1.7 of the product.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (41.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N.

Affected products

Espocrm — versions 6.1.6

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.rapid7.com/blog/post/2021/07/27/multiple-open-source-web-app-vulnerabilitie… (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-3539?: CVE-2021-3539 is a medium-severity vulnerability in Espocrm, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2021-08-04.
How severe is CVE-2021-3539?: Medium severity. CVSS v3 base score is 6.3 out of 10.