CVE-2026-1323
MEDIUM EPSS 11.8%
Published Mar 17, 20263mo ago · Modified Jun 17, 20262w ago
5.2 CVSS 4.0
Published Mar 17, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago
Description
The extension fails to properly define allowed classes used when deserializing transport failure metadata. An attacker may exploit this to execute untrusted serialized code. Note that an active exploit requires write access to the directory configured at $GLOBALS['TYPO3_CONF_VARS']['MAIL']['transport_spool_filepath'].
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
11.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-502 Deserialization of Untrusted Data Validation
Affected Products 2
References 1
- typo3.org https://typo3.org/security/advisory/typo3-ext-sa-2026-005
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.