Medium
Joomla! Core - [20260908] - Core - XSS in HTML Mail Templates in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3
Joomla! Core - [20260908] - Core - XSS in HTML Mail Templates in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - The mail template feature lacks an escaping mechanism, causing XSS vectors in multiple extensions.
Announced Group revision 1
Original source ↗CVE-2026-90918
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-90918
Joomla! CMS
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Joomla! Project",
"product": "Joomla! CMS",
"versions": [
{
"status": "affected",
"version": "4.0.0-5.4.8"
},
{
"status": "affected",
"version": "6.0.0-6.1.3"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-90918
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #4592 · Revision 1
- Added to Heist Feed
- Publisher date