CVE-2026-105831: EspoCRM before 10.0.6 Unauthenticated Stored HTML Injection via Lead Capture Form

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-08 · updated 2026-10-08
Weakness: CWE-79

Description

EspoCRM before 10.0.6 contains a stored HTML injection vulnerability that allows unauthenticated attackers to inject HTML by submitting crafted Lead Capture public form data. The request body is stored in LeadCaptureLogRecord.data and rendered unescaped when administrators view the log record, though Content Security Policy blocks JavaScript execution.

Affected products

espocrm: before 10.0.6 — fixed in 10.0.6

How to fix

Upgrade to a fixed version: espocrm 10.0.6. Check the vendor advisory for mitigations.

References

https://github.com/espocrm/espocrm/security/advisories/GHSA-xfqv-j65r-qqgh
https://www.vulncheck.com/advisories/espocrm-before-10.0.6-unauthenticated-stored-html-injection-via-lead-capture-form

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