CVE-2026-88853CWE-79cross-site-scripting

CVE-2026-88853

published September 14, 2026

CVSS
7.5
EPSS
0%
Percentile
35.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
7.5 · NONE
CVSS v4.0
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
EPSS
0.00418 · 35.0th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-14T11:17Z
References (1)
https://www.regularlabs.com/ · [email protected]
EPSS history
Timeline
  • 15 SEP 03:22Z
    EPSS moved — → 0%
    epss
  • 14 SEP 06:13Z
    Joomla Extension - regularlabs.com - Privileged stored XSS via event handler option in Modals Pro extension for Joomla < 17.0.0
    cvelistv5