CVE-2021-3539

EspoCRM Avatar Persistent XSS

Description

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.

Category

6.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.33%
Third-Party Advisory rapid7.com
Affected: EspoCRM EspoCRM
Published at:
Updated at:

References

Link Tags
https://www.rapid7.com/blog/post/2021/07/27/multiple-open-source-web-app-vulnerabilities-fixed/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-3539?
CVE-2021-3539 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3539?
To fix CVE-2021-3539, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3539 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3539 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3539?
CVE-2021-3539 affects EspoCRM EspoCRM.
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