CVE-2026-111255 The affiliate-toolkit – Multi-Network Affiliate & Amazon Product Display plugin for WordPress is vulnerable to Arbitrary File Upload in all
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-111255?
CVE-2026-111255 is a high-severity vulnerability in cservit affiliate-toolkit – Multi-Network Affiliate & Amazon Product Display, published on 28 Oct 2026.
Official description
The affiliate-toolkit – Multi-Network Affiliate & Amazon Product Display plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 3.9.2 via the upload_image function. This is due to insufficient file type validation in upload_image due to a weak Content-Type prefix check and extension derivation from the attacker-controlled URL path, with no dangerous-extension stripping. This makes it possible for authenticated attackers, with contributor-level access and above, to upload files that may be executable, which makes remote code execution possible. Exploitation requires the "import product image" option to be enabled in the plugin settings, as this activates the image download pipeline triggered on product post save.
Weakness: CWE-434
Which versions are affected by CVE-2026-111255?
How do I fix CVE-2026-111255?
No fix has been published for CVE-2026-111255 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-111255 being exploited?
There is no known exploitation of CVE-2026-111255 in the wild and no public exploit code.
Sources
Also known as GHSA-6wvw-5jhh-gcg4.