CVE-2026-103905: CWE-306 Missing authentication for critical function in JTL-Software GmbH JTL-Shop
Description
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.
CVSS v4.0
Score 8.7high
Affected software
JTL-Software GmbH
JTL-Shop
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ENISA
- Date Reserved
- 2026-10-01T14:12:50.876Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6acf5e2e2cdf04f6566e4b1d
Added to database: 10/14/2026, 10:49:18 UTC
Last updated: 10/14/2026, 10:49:18 UTC
Views: 1
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.