WordPress plugin
Flexi – Guest Submit security & vulnerabilities
Unpatched vulnerability in the latest version
At least one vulnerability affects the latest version and no fix has been released. Deactivate the plugin or restrict access to the affected feature until the vendor ships a patch.
- Critical1
- High0
- Medium2
- Low0
All Flexi – Guest Submit vulnerabilities
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Flexi – Guest Submit: common questions
Does Flexi – Guest Submit have known vulnerabilities?
Yes. VulnCrest Radar lists 3 known vulnerabilities in Flexi – Guest Submit: 1 critical, 2 medium. At least one is not fixed in the latest version.
How do I check which version of Flexi – Guest Submit I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent Flexi – Guest Submit vulnerability?
CVE-2025-9129, published Oct 2, 2025: Flexi <= 4.28 - Authenticated (Contributor+) Stored Cross-Site Scripting via flexi-form-tag Shortcode. Severity: Medium (CVSS 6.4).
Is any Flexi – Guest Submit vulnerability listed in CISA KEV?
No. None of the known Flexi – Guest Submit vulnerabilities is currently listed in the CISA KEV catalog.