CVE-2026-66572: Crocoblock JetBlog cross-site scripting in contributor form

CVE-2026-66572 · Severity: medium · CVSS 6.5 · Published 2026-09-17

JetBlog is a WordPress plugin for creating and managing blog content. The plugin contains a cross-site scripting (XSS) vulnerability in its contributor interface that allows an authenticated contributor to inject malicious scripts. If exploited, attackers could steal visitor data, hijack user accounts, or deface the website.

Technologies: Crocoblock JetBlog. Vendors: Crocoblock.

Quick answers

Is CVE-2026-66572 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-66572 being exploited in the wild.
How severe is CVE-2026-66572?
Medium severity, with a CVSS score of 6.5, published 17 September 2026.
Which products and versions are affected?
Crocoblock JetBlog <=2.4.10.
Is there a fix for CVE-2026-66572?
A patch was published on 2026-09-17: Version 2.4.10.1 and later Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-66572 attacked?
It is attacked over the network.
Am I affected by CVE-2026-66572?
Check whether you run Crocoblock JetBlog 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

JetBlog versions up to 2.4.10 are vulnerable to stored or reflected cross-site scripting (XSS) in the contributor area. The vulnerability allows authenticated users with contributor privileges to inject unvalidated input that is executed in the context of other users' browsers. Exploitation requires user interaction (e.g., a contributor clicking a malicious link or submitting a crafted form). An attacker with contributor access can inject JavaScript to steal session tokens, modify page content, or redirect users to phishing sites. The vulnerability has been patched in version 2.4.10.1 and later.

Affected products

  • Crocoblock JetBlog <=2.4.10

Timeline

  • 2026-09-17: disclosed
  • 2026-09-17: patched: Version 2.4.10.1 and later

References

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