CVE-2026-100751

HIGH
MEDIUM Priority: 0.01 BB Relevance: 60/100
Published: 2026-09-28 Modified: 2026-10-27 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: N
AT: Present
VC: High
VI: High
VA: Low

Description

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
regularlabs tabs_\&_accordions 2.3.0 – 3.1.0
regularlabs tabs_\&_accordions 2.3.0 – 3.1.0

References & Advisories (1)

Bug Bounty Relevance

60 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.18%
Raw Score 0.001750
Percentile 7.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00175
2026-10-28
0.00175

Intelligence Sources

nvd ref →