Quick answers
- Is CVE-2026-84903 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-84903 being exploited in the wild.
- How severe is CVE-2026-84903?
- Low severity, with a CVSS score of 2.7, published 18 September 2026.
- Which products and versions are affected?
- King Addons for Elementor before 51.1.81.
- Is there a fix for CVE-2026-84903?
- A patch was published on 2026-09-18: Version 51.1.81 fixes the vulnerability Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-84903 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-84903?
- Check whether you run King Addons 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
The vulnerability is an information disclosure (CWE-200) caused by missing access control checks in the kng_maintenance_page shortcode handler. The plugin renders user-supplied post content without verifying the user's capabilities, post status, or password protection. An authenticated user with Contributor-level access or above can exploit this by specifying a post ID in the shortcode parameters to read content they are not authorized to access. The vulnerability requires authentication and existing plugin use, but no special interaction beyond shortcode parameter manipulation is needed.
Affected products
- King Addons King Addons for Elementor before 51.1.81
Timeline
- 2026-09-16: disclosed
- 2026-09-18: patched: Version 51.1.81 fixes the vulnerability