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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://github.com/espocrm/espocrm/commit/67223bfb82338c030f38dac03f12c73b7b3d7…
security-advisories@github.com
https://github.com/espocrm/espocrm/releases/tag/9.3.9
security-advisories@github.com
https://github.com/espocrm/espocrm/security/advisories/GHSA-x5p5-8mxj-9wv6
security-advisories@github.com