Quick answers
- Is CVE-2026-65762 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-65762 being exploited in the wild.
- How severe is CVE-2026-65762?
- Informational severity, with a CVSS score of 5.1, published 23 July 2026.
- Which products and versions are affected?
- Phoca Guestbook 1.0.0-6.1.0.
- Is there a fix for CVE-2026-65762?
- 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-2026-65762 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-65762?
- Check whether you run Phoca Guestbook 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
A reflected cross-site scripting (XSS) vulnerability exists in the Phoca Guestbook extension (versions 1.0.0-6.1.0) for Joomla. The issue stems from improper neutralization of user-supplied input during web page generation (CWE-79). An unauthenticated remote attacker can exploit this by tricking a user into clicking a malicious link containing crafted parameters. Successful exploitation allows the execution of arbitrary JavaScript in the context of the victim's browser session, which can lead to session hijacking or unauthorized manipulation of the web application.
Affected products
- phoca.cz Phoca Guestbook extension for Joomla 1.0.0-6.1.0
Timeline
- 2026-07-23: disclosed
- 2026-07-23: advisory