CVE-2026-1908 Cross-site scripting in Integration with Hubspot Forms

Medium 6.4 Published Updated

Authenticated attackers with Contributor access can inject arbitrary scripts via shortcode attributes, leading to stored XSS execution on victim pages.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-1908?

CVE-2026-1908 is a medium-severity cross-site scripting vulnerability in minnur Integration with Hubspot Forms, published on 21 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Integration with Hubspot Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'hubspotform' shortcode in all versions up to, and including, 1.2.2 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Weakness: CWE-79

Which versions are affected by CVE-2026-1908?

How do I fix CVE-2026-1908?

No fix has been published for CVE-2026-1908 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-2026-1908 being exploited?

There is no known exploitation of CVE-2026-1908 in the wild and no public exploit code.

Sources

Also known as GHSA-rww4-4g7g-fx67.

Is CVE-2026-1908 in your software?

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