Quick answers
- Is CVE-2026-81566 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-81566 being exploited in the wild.
- How severe is CVE-2026-81566?
- Informational severity, published 14 September 2026.
- Which products and versions are affected?
- JoomShaper SP Page Builder 4.0.0 to 6.9.0.
- Is there a fix for CVE-2026-81566?
- 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-2026-81566 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-81566?
- Check whether you run JoomShaper SP Page Builder 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
The vulnerability is a missing access control (authorization bypass) in the add-to-menu routine of SP Page Builder. The code directly invokes the com_menus component's save() method without performing authorization checks; it relies only on a core.edit permission check against com_sppagebuilder itself, not com_menus. Since the actual authorization logic for menu operations resides in the com_menus controller, this direct model invocation circumvents those checks. An attacker with SP Page Builder access but no com_menus permissions can craft menu item creation requests, including overwriting existing menu items by controlling the jform[menuid] field. The site's home page flag is read back from the database and preserved, allowing attackers to repoint the site's home menu item while keeping it designated as the home page.
Affected products
- JoomShaper SP Page Builder 4.0.0 to 6.9.0
Timeline
- 2026-09-14: disclosed