CVE-2026-1323 — Insecure Deserialization in extension "Mailqueue" (mailqueue)
The extension fails to properly define allowed classes used when deserializing transport failure metadata. An attacker may exploit this to execute untrusted serialized code. Not…
Published: 2026-03-17 · CVSS: 5.2 · CVSS 4.0
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'].
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7