CVE-2026-59994

Published: Oct 15, 2026Modified: Oct 20, 2026Deferred

4.3

Vector

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

Exploitability: 2.8 / Impact: 1.4

Source: security-advisories@github.com (Secondary)

Description

EspoCRM is an open source customer relationship management application. Prior to 9.3.9, an unauthenticated remote attacker can send an email to a monitored group or IMAP address, including an email-to-Case address, and place arbitrary HTML in its plain-text body. EspoCRM stores that body and renders it without escaping in Email Received stream notification emails sent to users following the related record, allowing HTML injection and, in mail clients that execute it, JavaScript execution. Earlier sanitization for Post and Mention notifications did not cover this notification path. This issue is fixed in version 9.3.9.

Related CWEs

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (3)

https://github.com/espocrm/espocrm/commit/f9fd47622df04617728643b4b8f1a22563cbc6e7

Source: security-advisories@github.com

https://github.com/espocrm/espocrm/releases/tag/9.3.9

Source: security-advisories@github.com

https://github.com/espocrm/espocrm/security/advisories/GHSA-3rh4-9hcq-g79m

Source: security-advisories@github.com

Timeline

No history available yet.