Quick answers
- Is CVE-2026-85191 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-85191 being exploited in the wild.
- How severe is CVE-2026-85191?
- Informational severity, published 14 September 2026.
- Which products and versions are affected?
- Regular Labs Tabs & Accordions < 3.1.0.
- Is there a fix for CVE-2026-85191?
- 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-2026-85191 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-85191?
- Check whether you run Regular Labs Tabs & Accordions 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
This is a stored cross-site scripting (XSS) vulnerability in the Regular Labs Tabs & Accordions extension for Joomla, affecting versions below 3.1.0. The vulnerability exists in how the extension processes the rtla-alias option when rendering links: it places the alias value directly into a quoted JavaScript argument within an HTML onclick attribute without properly escaping both the JavaScript string context and HTML attribute context. An attacker with sufficient privileges (likely an admin or content editor) can craft a malicious data-rlta-alias value that breaks out of the intended context and injects arbitrary JavaScript code. When the affected page is viewed, the malicious script executes in visitors' browsers. The vulnerability requires authenticated access to inject the payload, but affects all users who visit the compromised page.
Affected products
- Regular Labs Tabs & Accordions < 3.1.0
Timeline
- 2026-09-14: disclosed