CVE-2026-0859

MEDIUM EPSS 6.1%
Published Jan 13, 20265mo ago · Modified Jun 17, 20262w ago
5.2 CVSS 4.0
Medium
Find Similar
Published Jan 13, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

Description

TYPO3's mail‑file spool deserialization flaw lets local users with write access to the spool directory craft a malicious file that is deserialized during the mailer:spool:send command, enabling arbitrary PHP code execution on the web server. This issue affects TYPO3 CMS versions 10.0.0-10.4.54, 11.0.0-11.5.48, 12.0.0-12.4.40, 13.0.0-13.4.22 and 14.0.0-14.0.1.

CVSS Details

Base Score
5.2
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
6.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-502 Deserialization of Untrusted Data Validation

Affected Products 5

VendorProductVersionRange
typo3typo3*≥10.0.0  –  <10.4.55
typo3typo3*≥11.0.0  –  <11.5.49
typo3typo3*≥12.0.0  –  <12.4.41
typo3typo3*≥13.0.0  –  <13.4.23
typo3typo3*≥14.0.0  –  <14.0.2

References 4

  • github.com https://github.com/TYPO3/typo3/commit/3225d705080a1bde57a66689621c947da5a4782f
    Patch
  • github.com https://github.com/TYPO3/typo3/commit/722bf71c118b0a8e4f2c2494854437d846799a13
    Patch
  • github.com https://github.com/TYPO3/typo3/commit/e0f0ceee480c203fbb60b87454f5f193e541d27f
    Patch
  • typo3.org https://typo3.org/security/advisory/typo3-core-sa-2026-004
    Vendor Advisory

Remediation

  • github.com https://github.com/TYPO3/typo3/commit/3225d705080a1bde57a66689621c947da5a4782f
    Patch
  • github.com https://github.com/TYPO3/typo3/commit/722bf71c118b0a8e4f2c2494854437d846799a13
    Patch
  • github.com https://github.com/TYPO3/typo3/commit/e0f0ceee480c203fbb60b87454f5f193e541d27f
    Patch