Track vulnerabilities like this one. Sign up free to get alerted when software you use is affected.
7.5

Regular Labs Tabs & Accordions can execute malicious scripts

CVE-2026-100751 · published 1 month ago
Summary

The Tabs & Accordions extension for Joomla lets an attacker store a specially crafted link that the extension later turns into a browser command, causing malicious code to run when a visitor clicks the tab. This can give the attacker the same privileges as the site’s editor, potentially compromising content and user data. Update to a version that validates URLs or disable the extension until a safe release is available.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
regularlabs.com tabs & accordions (free, pro) extension for joomla 2.3.0-3.1.0
regularlabs tabs_\&_accordions >= 2.3.0, <= 3.1.0
cpe:2.3:a:regularlabs:tabs_\&_accordions:*:*:*:*:pro:joomla\!:*:*
Original advisory text
Joomla Extension - regularlabs.com - Privileged stored XSS via data-rlta-url attributes in Tabs & Accordions (Pro) 2.3.0 - 3.1.0
Joomla Extension - regularlabs.com - Privileged stored XSS via data-rlta-url attributes in Tabs & Accordions (Pro) 2.3.0 - 3.1.0 - Tabs & Accordions Pro accepts a url option for an item and writes it to a generated data-rlta-url attribute. The browser code passes that value to window.open() when the item is activated. Affected versions do not reject browser URL schemes which execute JavaScript. Joomla sees ordinary plugin syntax while filtering the authored article; Tabs & Accordions creates the executable browser behavior later while rendering the article.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
7.5 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published28 Sep 2026
Updated28 Oct 2026
First seen28 Sep 2026
Sources
CVE-2026-100751 · NVD
CVE-2026-100751 · MITRE
Track software like this
Free during beta