PT-2026-41993 · Espocrm · Espocrm

Published 2026-05-19 · Updated 2026-05-19 · CVE-2026-33741

Positive Technologies (AI Summary)

CVSS v3.1

6.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions EspoCRM versions prior to 9.3.4

Description Authenticated users can upload SVG attachments via standard attachment-capable fields. These files are served as top-level inline documents through attachment and image entry points, leading to stored cross-user Cross-Site Scripting (XSS), which is a flaw allowing scripts to be executed in the browser of another user. While the Content Security Policy (CSP) blocks inline SVG scripts, it permits same-origin external scripts. An attacker can exploit this by uploading a malicious SVG and a separate attacker-controlled JavaScript attachment, then tricking a user into opening the SVG to execute the script within the application origin.

Recommendations Update to version 9.3.4.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-33741

Affected Products

Espocrm

References · 4

• 🔥 https://github.com/espocrm/espocrm/security/advisories/GHSA-5wh5-ccv2-m3pv · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-33741 · Security Note
• https://twitter.com/CVEnew/status/2056870198326563221 · Twitter Post
• https://t.me/CVEtracker/54268 · Telegram Post