# CVE-2026-88853

## Summary

- **CVE ID:** CVE-2026-88853
- **Severity:** HIGH
- **CVSS Score:** 7.5 (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)
- **CWE:** CWE-79
- **Published:** Sep 14, 2026
- **Last Modified:** Sep 15, 2026

## Description

Joomla Extension - regularlabs.com - Privileged stored XSS via event handler option in Modals Pro extension for Joomla < 17.0.0 - Modals Pro intentionally supports JavaScript Events such as on-open and on-closed. Affected versions do not distinguish trusted extension configuration from event code supplied in ordinary article content. A lower-privileged author can therefore use a documented executable feature which should be reserved for trusted authors.

## Affected Products

- regularlabs.com — Modals (Pro) extension for Joomla (4.7.0-16.2.0)

## References

- [CNA](https://www.regularlabs.com/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.25%
- **EPSS Percentile:** 16.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._