---
title: "CVE-2026-100751: Joomla Extension - regularlabs.com Tabs & Accordions Pro - Stored XSS"
description: "Joomla Extension - regularlabs.com Tabs & Accordions Pro 2.3.0 to 3.1.0 contains a stored XSS caused by unsafe handling of data-rlta-url attributes allowing JavaScript URL schemes, letting attackers execute scripts via window.open(), exploit requires crafted article content."
url: https://panop.io/threat-heartbeat/CVE-2026-100751/
---

# CVE-2026-100751 Joomla Extension - regularlabs.com Tabs & Accordions Pro - Stored XSS

Joomla Extension - regularlabs.com Tabs & Accordions Pro 2.3.0 to 3.1.0 contains a stored XSS caused by unsafe handling of data-rlta-url attributes allowing JavaScript URL schemes, letting attackers execute scripts via window.open(), exploit requires crafted article content.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.30% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-100751)

## Details

Type

Stored XSS

Impact

Stored XSS

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:X/V:X/RE:X/U:X

Published

28 September 2026

Updated

15 October 2026

Weakness

[CWE-79](https://cwe.mitre.org/data/definitions/79.html)

## Vendor fix

Update to a version later than 3.1.0 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-100751](https://nvd.nist.gov/vuln/detail/CVE-2026-100751)
- [https://www.regularlabs.com/](https://www.regularlabs.com/)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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