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CVE-2026-85191— Joomla Extension - regularlabs.com - Privileged stored XSS via rtla-alias option in Tabs & Accordions extension for Joomla < 3.1.0

Quick assessment

Affected
regularlabs.com Tabs & Accordions (Free, Pro) extension for Joomla
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Joomla 扩展 — regularlabs.com — Tabs & Accordions 扩展（Joomla < 3.1.0 版本）中的“rtla-alias”选项存在特权型存储型跨站脚本（Stored XSS）漏洞。Tabs & Accordions 扩展会将与项目别名（item alias）匹配的链接重写为其浏览器 API 调用。受影响的渲染器将别名放在 HTML 的 onclick 属性中一个带引号的 JavaScript 参数内部，却未同时保护 JavaScript 字符串上下文和 HTML 属性上下

CVSS 7.5 · High EPSS 0.42% · P36

Affected Version Matrix 1

VendorProduct Version RangeStatus
regularlabs.com Tabs & Accordions (Free, Pro) extension for Joomla 1.0.0-3.0.5 affected
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I. Basic Information for CVE-2026-85191

Vulnerability Information
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Vulnerability Title
Joomla Extension - regularlabs.com - Privileged stored XSS via rtla-alias option in Tabs & Accordions extension for Joomla < 3.1.0
Source: CVE Program / CVE List V5
Vulnerability Description
Joomla Extension - regularlabs.com - Privileged stored XSS via rtla-alias option in Tabs & Accordions extension for Joomla < 3.1.0 - Tabs & Accordions rewrites links matching an item alias into calls to its browser API. The affected renderer places the alias inside a quoted JavaScript argument in an HTML onclick attribute without securing both the JavaScript-string and HTML-attribute contexts. A crafted data-rlta-alias value can therefore change the generated handler.
Source: CVE Program / CVE List V5
CVSS Information
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/S:N/AU:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
regularlabs.com Tabs & Accordions (Free, Pro) extension for Joomla 1.0.0-3.0.5 -

II. Public POCs for CVE-2026-85191

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III. Intelligence Information for CVE-2026-85191

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Vendor Pages for CVE-2026-85191 (1)

Same Patch Batch · regularlabs.com · 2026-09-14 · 9 CVEs total

CVE-2026-85192 9.4 CRITICAL Joomla Extension - regularlabs.com - Authenticated, privileged remote code execution in Co
CVE-2026-85195 7.5 HIGH Joomla Extension - regularlabs.com - Privileged stored XSS via link option in Articles Any
CVE-2026-88853 7.5 HIGH Joomla Extension - regularlabs.com - Privileged stored XSS via event handler option in Mod
CVE-2026-85190 7.5 HIGH Joomla Extension - regularlabs.com - Privileged stored XSS via class option in Quick Index
CVE-2026-85189 7.5 HIGH Joomla Extension - regularlabs.com - Privileged stored XSS via executable URL schemes in M
CVE-2026-88852 7.5 HIGH Joomla Extension - regularlabs.com - Privileged stored XSS via url option in Snippets Free
CVE-2026-85188 6.9 MEDIUM Joomla Extension - regularlabs.com - Database data disclosure in Advanced Module Manager (
CVE-2026-85196 5.3 MEDIUM Joomla Extension - regularlabs.com - Reflected XSS in Articles Anywhere extension for Joom

IV. Related Vulnerabilities

Same product: Tabs & Accordions (Free, Pro) extension for Joomla
Same vendor: regularlabs.com
Same weakness: CWE-79