CVE-2026-105831 EspoCRM before 10.0.6 Unauthenticated Stored HTML Injection via Lead Capture Form
Unauthenticated attackers can inject HTML into EspoCRM lead capture logs, potentially bypassing security controls when administrators view the records.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-105831?
CVE-2026-105831 is a medium-severity cross-site scripting vulnerability in espocrm, published on 8 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-105831?
How do I fix CVE-2026-105831?
No fix has been published for CVE-2026-105831 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-105831 being exploited?
There is no known exploitation of CVE-2026-105831 in the wild and no public exploit code.
Sources
Also known as GHSA-qv95-q49f-g838, GHSA-xfqv-j65r-qqgh.