CVE-2026-104743 The Tainacan plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.3.0 via the 'tmp_file' parameter parameter.
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-104743?
CVE-2026-104743 is a medium-severity vulnerability in Tainacan, published on 28 Oct 2026.
Official description
The Tainacan plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.3.0 via the 'tmp_file' parameter parameter. This makes it possible for authenticated attackers, with editor-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. The poisoned importer path is persisted to the database and later triggered via a separate GET request to the /source_info endpoint, which passes the attacker-controlled path to fopen() and fgetcsv() and returns parsed file contents in the REST response.
Weakness: CWE-22
Which versions are affected by CVE-2026-104743?
How do I fix CVE-2026-104743?
No fix has been published for CVE-2026-104743 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-104743 being exploited?
There is no known exploitation of CVE-2026-104743 in the wild and no public exploit code.
Sources
Also known as GHSA-hjqg-w7m7-3cch.