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Deserialization of Untrusted Data

CVE-2026-45162

Severity Low
Score 0/10

Summary

Multiple locations in Pimcore v11 call PHP's `unserialize()` on data from database columns and filesystem files without the `allowed_classes` restriction, enabling object injection if an attacker can control the serialized data source. Affected versions are prior to 12.3.7.

  • HIGH
  • NETWORK
  • HIGH
  • CHANGED
  • NONE
  • HIGH
  • HIGH
  • HIGH

CWE-502 - Deserialization of Untrusted Data

Deserialization of untrusted data vulnerabilities enable an attacker to replace or manipulate a serialized object, replacing it with malicious data. When the object is deserialized at the victim's end the malicious data is able to compromise the victim’s system. The exploit can be devastating, its impact may range from privilege escalation, broken access control, or denial of service attacks to allowing unauthorized access to the application's internal code and logic which can compromise the entire system.

Advisory Timeline

  • Published