Medium (6.1) in espocrm espocrm. EPSS 0.9% chance of exploitation in the next 30 days.
EspoCRM 5.6.4 is vulnerable to stored XSS due to lack of filtration of user-supplied data in the Knowledge base. A malicious attacker can inject JavaScript code in the body parameter during api/v1/KnowledgeBaseArticle knowledge-base record creation.
Severity
CVSS 3.0
6.1 medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)