Quick answers
- Is CVE-2026-88856 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-88856 being exploited in the wild.
- How severe is CVE-2026-88856?
- Informational severity, published 20 September 2026.
- Which products and versions are affected?
- OrdaSoft Joomla Gallery before 6.2.7.
- Is there a fix for CVE-2026-88856?
- 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-2026-88856 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-88856?
- Check whether you run OrdaSoft Joomla Gallery 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 updateOSGallery() method in OrdaSoft Joomla Gallery accepts a JSON request body containing method and package fields without validating or restricting which PHP functions can be called. An attacker with administrative privileges can invoke arbitrary single-argument PHP functions (such as system, exec, shell_exec, or passthru) by specifying them in the method field and passing shell commands via the package field. No fix information is provided in the advisory.
Affected products
- OrdaSoft Joomla Gallery before 6.2.7
Timeline
- 2026-09-20: disclosed