Quick answers
- Is CVE-2026-91015 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-91015 being exploited in the wild.
- How severe is CVE-2026-91015?
- Medium severity, with a CVSS score of 5.3, published 17 September 2026.
- Which products and versions are affected?
- JoomlaTheme Master Addons for Elementor before 3.1.9.
- Is there a fix for CVE-2026-91015?
- A patch was published on 2026-09-15: Fixed in version 3.1.9 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-91015 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-91015?
- Check whether anything you run is named in the advisory. 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 plugin fails to enforce authorization checks on the AJAX action jltma_popup_disable_expired, which deactivates Popup Builder popups. The vulnerability relies solely on a nonce that is publicly output to all visitors, making the nonce predictable and useless as a security control. An unauthenticated attacker can craft an AJAX request to permanently disable any popup on the site. This is a broken access control vulnerability (CWE-862) that was patched in version 3.1.9.
Affected products
- JoomlaTheme Master Addons for Elementor before 3.1.9
Timeline
- 2026-09-15: disclosed
- 2026-09-15: patched: Fixed in version 3.1.9