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P4Verified
CVE-2026-107843: contao >= 4.1.0, < 5.3.50, >= 5.4.0-RC1, < 5.7.12
CVE-2026-107843. CVSS 3.1 base score 5.3 (MEDIUM, Vendor/CNA).
Affected technology
contao · >= 4.1.0, < 5.3.50, >= 5.4.0-RC1, < 5.7.12
contao
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
What an attacker can do
An unauthenticated attacker can cause repeated activation emails to be sent to an address with a pending registration and to determine whether that pending registration exists. Vendor/CNA’s CVSS 3.1 assessment (base score 5.3/10) rates confidentiality impact as low; integrity and availability impact as none.
- CWE
- CWE-204, CWE-770
- Product
- contao/core-bundle
- CCR priority
- 21.2 /100 (P4)
- CVSS 3.1
- 5.3 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N · Vendor/CNA
- KEV
- no
Provenance
- GitHub Advisory Database · Source record · observed 2026-10-09 22:06:25.045838+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-09 21:08:49.498434+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-107843.html