PatchTheCVECVE-2026-5718: The Drag and Drop Multiple File Upload for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file
CVE-2026-5718 is a high-severity flaw (CVSS 8.1) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The Drag and Drop Multiple File Upload for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file upload in versions up to, and including, 1.3.9.7. This is due to insufficient file type validation that occurs when custom blacklist types are configured, which replaces the default dangerous extension denylist instead of merging with it, and the wpcf7_antiscript_file_name() sanitization function being bypassed for filenames containing n
Why this priority
- High severity
- EPSS top 9%: very likely to be exploited
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.1 (High) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 4.2% (top 9%) |
| CISA exploited list | No |
| Weakness | CWE-434 |
| Published | 2026-04-17 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- GitHub PoC: kyukazamiqq/cve-2026-5718 (1 stars)
- GitHub PoC: rootdirective-sec/CVE-2026-5718-Lab (1 stars)
- GitHub PoC: xxconi/CVE-2026-5718 (0 stars)
- Nuclei scan template: Drag and Drop Multiple File Upload - CF7 <= 1.3.9.6 - Remote Code Execution
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-2026-5718?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-5718 being exploited?
CVE-2026-5718 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-2026-5718 affect?
CVE-2026-5718 affects affected software. Severity is high (CVSS 8.1). The Drag and Drop Multiple File Upload for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file upload in versions up to, and including, 1.3.9.7. This is due to insufficient file type validation that occurs when custom blackl
How urgent is CVE-2026-5718?
Priority 56/100. High severity; EPSS top 9%: very likely to be exploited; Remotely exploitable, no login, no user action