CVE-2026-1323

highpriority · track · 35EPSS 0.002 · 13 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.22% (13th) EPSS

CVSS 8.8 · high

Is it mine?

10 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 1.3–8.8

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v4.05.2mediumCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:Hsecondary · ENISA EU

v4.05.2mediumCVSS: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:Xsecondary

v4.01.3lowCVSS: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:U/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:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USCWE-502US

affected products (10)

Products and version ranges known to be affected.

TYPO3 Extension Mailqueue <0.4.5all versionscert_bundDE
TYPO3 Extension Mailqueue <0.5.2all versionscert_bundDE
TYPO3 Extension≤ Mailqueue <0.4.5cert_bundDE
TYPO3 Extension≤ Mailqueue <0.5.2cert_bundDE
TYPO3 Extension "Mailqueue"0 → 0.4.5enisa_euvdEU
TYPO3 Extension "Mailqueue"0.5.0 → 0.5.2enisa_euvdEU
cps-it mailqueue< 0.4.5nvdUScpe:2.3:a:cps-it:mailqueue:*:*:*:*:*:*:*:*
cps-it mailqueue0.5.0 → 0.5.2nvdUScpe:2.3:a:cps-it:mailqueue:*:*:*:*:*:*:*:*
Packagist cpsit/typo3-mailqueue< 0.4.5osvUSpkg:composer/cpsit/typo3-mailqueue
Packagist cpsit/typo3-mailqueue0.5.0 → 0.5.2osvUSpkg:composer/cpsit/typo3-mailqueue

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-0753TYPO3 Extensions: Mehrere SchwachstellenDeutsch2026-03-16csaf · cert_bundDE
Ein lokaler, oder ein enfernter authentisierter Angreifer kann mehrere Schwachstellen in TYPO3 Extensions ausnutzen, um beliebigen Programmcode auszuführen, vertrauliche Informationen offenzulegen oder Sicherheitsmaßnahmen zu umgehen.
GHSA-2pm6-9fhx-vvg3The mailqueue TYPO3 extension has Insecure Deserialization in `TransportFailure` class2026-03-18ghsa · osvUS
## 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']`.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2026-03-17modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

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