Vulnerability · Published Nov 3, 2026 · Assigned by TYPO3
CVE-2026-120327Open Redirection in extension "Mail" (mail)
Medium 5.3
In plain English
A medium-severity open redirect in Extension "Mail" from TYPO3. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).
Severity (CVSS 4.0)5.3Medium
Exploit odds (30 days)0.3%top 72.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The click tracking middleware accepts an arbitrary target URL and redirects to it. Attackers can misuse links to the website to redirect users to external sites.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TYPO3 | Extension "Mail" | 4.0.0 – before 4.2.00 – before 3.12.5 |
Weakness: CWE-601 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N
References
- https://typo3.org/security/advisory/typo3-ext-sa-2026-037 vendor-advisory