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

Medium severity · published Aug 4, 2021

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

5.4

CVSS

0.6%

EPSS

On KEV

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack vector

Network

Complexity

Low

Privileges

Low

User interaction

Required

Confidentiality

Low

Integrity

Low

Availability

None

Scope

Changed

Exploitation

Is it being used?

Exploit prediction (EPSS)0.6% · higher than 48% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Espocrm · Espocrm

through 6.1.6 · source: NVD

Affected product

Espocrm

All Espocrm CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2021-3539

CVE.org

https://www.cve.org/CVERecord?id=CVE-2021-3539

Third Party Advisory

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