CVE-2026-5111 Gravity Forms <= 2.10.0 - Unauthenticated Stored Cross-Site Scripting via Hidden Product Field in Repeater
Unauthenticated attackers can inject scripts via form submissions that execute when administrators view entry details in Gravity Forms.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5111?
CVE-2026-5111 is a high-severity cross-site scripting vulnerability in Gravity Forms, published on 2 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Gravity Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 2.10.0. This is due to insufficient input validation and output escaping on Hidden Product field values when used inside Repeater fields, where repeater subfields bypass state validation checks and the Hidden Product validate() method only validates the quantity field while ignoring the product name field that is later output without proper escaping in the get_value_entry_detail() method. This makes it possible for unauthenticated attackers to inject arbitrary web scripts through form submissions that will execute whenever an administrator views the entry details.
Weakness: CWE-79
Which versions are affected by CVE-2026-5111?
How do I fix CVE-2026-5111?
No fix has been published for CVE-2026-5111 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-2026-5111 being exploited?
There is no known exploitation of CVE-2026-5111 in the wild and no public exploit code.
Sources
Also known as GHSA-r9gg-4m43-3w6p.