Quick answers
- Is CVE-2026-19797 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-19797 being exploited in the wild.
- How severe is CVE-2026-19797?
- Medium severity, with a CVSS score of 6.1, published 9 September 2026.
- Which products and versions are affected?
- User Access Manager User Access Manager up to and including 2.3.18.
- Is there a fix for CVE-2026-19797?
- 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-2026-19797 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-19797?
- Check whether anything you run is named in the advisory. 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 reflected XSS flaw in the 'tab_group_section' parameter, caused by insufficient input sanitization and output escaping in the plugin's backend controller. The attack vector is network-based and does not require authentication; however, it does require social engineering to trick a user into clicking a malicious link. An unauthenticated attacker can inject arbitrary JavaScript code that executes in the context of a logged-in administrator's browser session, potentially leading to account compromise or unauthorized modifications to site settings. Patches are available in versions after 2.3.18.
Affected products
- User Access Manager User Access Manager up to and including 2.3.18
Timeline
- 2026-09-09: disclosed