CVE-2026-1323— Insecure Deserialization in extension "Mailqueue" (mailqueue)
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I. Basic Information for CVE-2026-1323
Vulnerability Information
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Vulnerability Title
Insecure Deserialization in extension "Mailqueue" (mailqueue)
Source: NVD (National Vulnerability Database)
Vulnerability 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'].
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
可信数据的反序列化
Source: NVD (National Vulnerability Database)
Vulnerability Title
TYPO3 Mailqueue 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TYPO3 Mailqueue是Elias Häußler个人开发者的一个用于管理与发送邮件队列的扩展组件。 TYPO3 Mailqueue存在安全漏洞，该漏洞源于扩展未能正确定义反序列化传输失败元数据时使用的允许类，可能导致执行不受信任的序列化代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| TYPO3 | Extension "Mailqueue" | 0 ~ 0.4.5 | - |
II. Public POCs for CVE-2026-1323
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Same Patch Batch · TYPO3 · 2026-03-17 · 3 CVEs total
| CVE-2026-4202 | Broken Access Control in extension "Redirect Tab" | |
| CVE-2026-4208 | Authentication Bypass in extension "E-Mail MFA Provider" (mfa_email) |
IV. Related Vulnerabilities
Same vendor: TYPO3
- CVE-2026-6553
TYPO3 CMS Stores Cleartext Password in User Settings Module - CVE-2026-4208
Authentication Bypass in extension "E-Mail MFA Provider" (mf - CVE-2026-4202
Broken Access Control in extension "Redirect Tab" - CVE-2026-0895
Insecure Deserialization in extension "Mailqueue" (mailqueue - CVE-2026-0859
TYPO3 CMS Allows Insecure Deserialization via Mailer File Sp
Same weakness: CWE-502
- CVE-2026-44126
Insecure deserialization - CVE-2026-5127
User Frontend: AI Powered Frontend Posting, User Directory, - CVE-2026-41586
ObjectInputStream.readObject() without ObjectInputFilter in - CVE-2026-34084
PhpSpreadsheet SSRF and RCE via PHP stream wrappers in IOFac - CVE-2026-7712
MindsDB Pickle pickle.loads deserialization
V. Comments for CVE-2026-1323
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