Quick answers
- Is CVE-2026-66576 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-66576 being exploited in the wild.
- How severe is CVE-2026-66576?
- Medium severity, with a CVSS score of 6.5, published 17 September 2026.
- Which products and versions are affected?
- Crocoblock JetBlocks For Elementor <= 1.5.2.
- Is there a fix for CVE-2026-66576?
- A patch was published on 2026-09-17: Version 1.5.2.1 and later Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-66576 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-66576?
- Check whether you run Crocoblock JetBlocks For Elementor 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 is a cross-site scripting (XSS) vulnerability in JetBlocks For Elementor affecting versions up to and including 1.5.2. The vulnerability exists in a component accessible to contributor-level users and requires user interaction (such as clicking a malicious link or submitting a form) to trigger. An attacker with contributor privileges can inject malicious JavaScript that executes in the browsers of site visitors, potentially stealing session cookies, credentials, or performing unauthorized actions on behalf of victims. The vulnerability has been patched in version 1.5.2.1 and later.
Affected products
- Crocoblock JetBlocks For Elementor <= 1.5.2
Timeline
- 2026-09-13: disclosed
- 2026-09-17: advisory
- 2026-09-17: patched: Version 1.5.2.1 and later