CVE-2026-126305
EspoCRM before 10.0.9 Stored XSS via Knowledge Base Article Attachments
CVSS Score
7.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | espocrm |
| Product | espocrm |
| Published | Nov 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
espocrm / espocrm
10.0.0 < 10.0.9
espocrm / espocrm
0 < 9.3.11
References
Credits
🔍 Paius-George