PatchTheCVECVE-2023-5387: The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing
CVE-2023-5387 is a medium-severity flaw (CVSS 4.3) affecting funnelforms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_af2_trigger_dark_mode function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to enable or disable the dark mode plugin setting.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 66%) |
| CISA exploited list | No |
| Weakness | CWE-862 |
| Published | 2023-11-22 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2023-5387?
funnelforms: upgrade to newer than 3.4. Exact commands for each OS are on this page.
Is CVE-2023-5387 being exploited?
CVE-2023-5387 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2023-5387 affect?
CVE-2023-5387 affects funnelforms. Severity is medium (CVSS 4.3). The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_af2_trigger_dark_mode function in versions up to, and including, 3.4. This makes it possible for auth
How urgent is CVE-2023-5387?
Priority 24/100. No elevated risk signals yet.
Software pages
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