Quick answers
- Is CVE-2026-12684 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-12684 being exploited in the wild.
- How severe is CVE-2026-12684?
- Informational severity, with a CVSS score of 5.3, published 16 July 2026.
- Which products and versions are affected?
- CusRev Customer Reviews for WooCommerce < 5.113.0.
- Is there a fix for CVE-2026-12684?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-12684 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-12684?
- Check whether you run CusRev Customer Reviews for WooCommerce at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability exists in the 'cr_upload_media' AJAX action due to a lack of authentication, capability, or nonce checks when the review media attachment feature is enabled. An unauthenticated attacker can send a POST request to 'wp-admin/admin-ajax.php' to upload files. While the plugin enforces an allowlist of extensions (including jpg, png, mp4, and avi) and performs MIME validation—preventing direct Remote Code Execution (RCE) via PHP files—it allows for arbitrary media library pollution and Denial of Service (DoS) through disk space exhaustion. The issue is fixed in version 5.113.0.
Affected products
- CusRev Customer Reviews for WooCommerce < 5.113.0
Timeline
- 2026-06-25: disclosed: Publicly published by WPScan
- 2026-07-16: advisory: NVD published date