CVE-2026-13430 File upload in Post Export Import with Media
Authenticated administrators can upload executable files via a trailing-dot filename bypass in the ZIP import feature, leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-13430?
CVE-2026-13430 is a high-severity vulnerability in wpazleen Post Export Import with Media, published on 10 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The Post Export Import with Media plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.13.1 via the import_media_file_secure function. This is due to insufficient file extension validation caused by a trailing-dot filename bypass, where the extension allow-list check in ajax_import_media_start() uses pathinfo() on the raw ZIP entry name (e.g., 'shell.php.'), which returns an empty string for the extension, causing the allow-list guard to be skipped and the file to be extracted to a temporary location, after which import_media_file_secure() copies it into the WordPress uploads directory without re-validating the extension. This makes it possible for authenticated attackers, with administrator-level access and above, to upload files that may be executable, which makes remote code execution possible.
Weakness: CWE-434
Which versions are affected by CVE-2026-13430?
How do I fix CVE-2026-13430?
No fix has been published for CVE-2026-13430 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-13430 being exploited?
There is no known exploitation of CVE-2026-13430 in the wild and no public exploit code.
Sources
Also known as GHSA-mxq7-wpp5-2fc9.