Unauthenticated Plugin Safe Mode Toggle Vulnerability in JTL-Shop
The authentication middleware of the JTL-Shop administration backend processes the plugin safe mode toggle on the admin logout route before checking whether the requesting user is authenticated. An unauthenticated remote attacker can therefore switch the shop's plugin safe mode on and off, which deactivates all installed plugins and their functionality, such as payment and shipping integrations, resulting in a shop-wide denial of service. The attack requires a single request and can be automated against many installations.
CVE-2026-103905
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-2026-103905
JTL-Shop
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": "JTL-Software GmbH",
"product": "JTL-Shop",
"versions": [
{
"status": "affected",
"version": "5.3.0",
"lessThan": "5.6.5",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.7.0",
"lessThan": "5.7.5",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.8.0",
"lessThan": "5.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-103905
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #21954 · Revision 1
- Added to Heist Feed
- Publisher date