PatchTheCVECVE-2023-6449: The Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type
CVE-2023-6449 is a medium-severity flaw (CVSS 6.6) affecting contact form 7. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'validate' function and insufficient blocklisting on the 'wpcf7_antiscript_file_name' function in versions up to, and including, 5.8.3. This makes it possible for authenticated attackers with editor-level capabilities or above to upload arbitrary files on the affected site's server, but due to the htaccess configuration,
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.6 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 1.8% (top 22%) |
| CISA exploited list | No |
| Weakness | CWE-434 |
| Published | 2023-12-01 |
| 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-2023-6449?
contact form 7: upgrade to 5.8.4. Exact commands for each OS are on this page.
Is CVE-2023-6449 being exploited?
CVE-2023-6449 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-2023-6449 affect?
CVE-2023-6449 affects contact form 7. Severity is medium (CVSS 6.6). The Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'validate' function and insufficient blocklisting on the 'wpcf7_antiscript_file_name' function in versions up to
How urgent is CVE-2023-6449?
Priority 43/100. No elevated risk signals yet.
Software pages
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