Quick answers
- Is CVE-2026-79631 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-79631 being exploited in the wild.
- How severe is CVE-2026-79631?
- Medium severity, with a CVSS score of 5.3, published 4 September 2026.
- Which products and versions are affected?
- WPFunnels before 3.13.0.
- Is there a fix for CVE-2026-79631?
- A patch was published on 2026-09-04: Fix released in version 3.13.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-79631 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-79631?
- Check whether you run WPFunnels 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
This vulnerability is an information disclosure issue (CWE-200) caused by inadequate access controls on log files. The WPFunnels plugin writes daily log files to a predictable location under /wp-content/uploads/wpfunnels/wpfunnels-logs/ (or /wp-content/uploads/wpfunnels-logs/ in versions before 3.0.0) with filenames following a fixed pattern: wpfunnels-event-log-YYYY-MM-DD.log. The files contain order details, opt-in form submissions with PII, and are not protected by access controls (the .htaccess file added from version 3.12.8 is ignored by nginx servers). An unauthenticated attacker can craft a simple HTTP request to retrieve any log file, and since logs are never rotated, historical data remains accessible. The vulnerability affects WPFunnels before version 3.13.0, requires only that logging be enabled (disabled by default but often left on for debugging), and requires no user interaction or authentication. The fix is available in version 3.13.0.
Affected products
- WPFunnels WPFunnels before 3.13.0
Timeline
- 2026-09-02: disclosed
- 2026-09-04: patched: Fix released in version 3.13.0