CVE-2026-55184

low

Description

EspoCRM is an open source customer relationship management application. Prior to 9.3.9, a user with Email Template or PDF Template edit permission can store crafted HTML that bypasses moderateSanitizeHtml(). When another user opens the template in edit mode and clientCspDisabled is true, the stored payload executes and can hijack the user's session. This issue is fixed in version 9.3.9.

References

https://github.com/espocrm/espocrm/security/advisories/GHSA-x5p5-8mxj-9wv6

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

https://github.com/espocrm/espocrm/commit/67223bfb82338c030f38dac03f12c73b7b3d760f

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-102104

Details

Source: Mitre, NVD

Published: 2026-10-15

Updated: 2026-10-15

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 3.5

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

Severity: Low