CVE-2026-8939 Search Simple Fields <= 0.2 - Cross-Site Request Forgery to Plugin Settings Update
Attackers can trick administrators into modifying Search Simple Fields plugin settings via forged requests, requiring a patch to fix missing nonce validation.
- 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-2026-8939?
CVE-2026-8939 is a medium-severity vulnerability in simonailie Search Simple Fields, published on 27 May 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
The Search Simple Fields plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 0.2. This is due to missing or incorrect nonce validation on the search_simple_fields_options() function in functions_admin.php. This makes it possible for unauthenticated attackers to modify the plugin's settings — including post types to search in, custom fields, media fields and the custom media function name — via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Weakness: CWE-352
Which versions are affected by CVE-2026-8939?
How do I fix CVE-2026-8939?
No fix has been published for CVE-2026-8939 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-8939 being exploited?
There is no known exploitation of CVE-2026-8939 in the wild and no public exploit code.
Sources
Also known as GHSA-3jqv-9jvm-w5m3.