PT-2021-20904 · Espocrm · Espocrm

Trevor Christiansen + 1 · Published 2021-08-04 · Updated 2025-05-27 · CVE-2021-3539

Positive Technologies (AI Summary)

CVSS v3.1

6.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N

Name of the Vulnerable Software and Affected Versions: EspoCRM versions 6.1.6 and prior

Description: The issue is a persistent (type II) cross-site scripting (XSS) vulnerability in processing user-supplied avatar images. This vulnerability was fixed in version 6.1.7 of the product.

Recommendations: For EspoCRM versions 6.1.6 and prior, update to version 6.1.7 or later to resolve the issue. As a temporary workaround, consider restricting the upload of user-supplied avatar images until the update is applied.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BIT-ESPOCRM-2021-3539

CVE-2021-3539

DLA-4180-1

Affected Products

Espocrm

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2021-3539 · Security Note
• https://osv.dev/vulnerability/BIT-espocrm-2021-3539 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-3539 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-4180-1 · Vendor Advisory
• https://t.me/cvenotify/18667 · Telegram Post
• https://t.me/cibsecurity/26865 · Telegram Post
• https://rapid7.com/blog/post/2021/07/27/multiple-open-source-web-app-vulnerabilities-fixed · Note