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Exploited vulnerability

CVE-2026-102785

TLP:CLEAR

Unrestricted Upload of File with Dangerous Type

Joomla Extension - yootheme.com - Unauthenticated remote code execution in YOOtheme Pro 5.0.0-5.0.52 - YOOtheme Pro’s publicly accessible image transformation handler incompletely binds normalized image operations and the output destination to its request signature. An unauthenticated remote attacker can reuse a signature disclosed in a legitimate public image URL, inject additional image operations, traverse out of the intended cache directory, and write an attacker-controlled PNG/PHP polyglot to an executable public media directory.

Facts

  • Vendor: yootheme.com
  • Product: YOOtheme Pro extension for Joomla
  • EPSS (probability of exploitation within 30 days): 0.8 %
  • First known exploitation: 27 October 2026
  • First seen by Risk Letters: 27 October 2026

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD

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