CVE-2026-126305

EUVD-2026-125215
EspoCRM before 9.3.11 and 10.x before 10.0.9 contains a stored cross-site scripting vulnerability in Knowledge Base articles that lets users with Knowledge Base create or edit access attach a JavaScript file and add a crafted link to the article body. When an administrator clicks the link, the script runs in their session and can create an administrator account with attacker-chosen credentials.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
7.3 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 30.95%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
espocrmespocrm
10.0.0 ≤
𝑥
< 10.0.9
CNA
espocrmespocrm
𝑥
< 9.3.11
CNA
Common Weakness Enumeration
References
https://github.com/espocrm/espocrm/security/advisories/GHSA-j6q5-9jwj-9p8q
https://www.vulncheck.com/advisories/espocrm-before-10.0.9-stored-xss-via-knowledge-base-article-attachments