CVE-2026-39471 PUBLISHED

WordPress ShortPixel Image Optimizer plugin <= 6.4.3 - PHP Object Injection vulnerability

Assigner: Patchstack
Reserved: 07.04.2026 Published: 15.06.2026 Updated: 15.06.2026

Author PHP Object Injection in ShortPixel Image Optimizer <= 6.4.3 versions.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 7.2

Product Status

Vendor ShortPixel
Product ShortPixel Image Optimizer
Versions Default: unaffected
  • affected from n/a to 6.4.3 (incl.)

Solutions

Update the WordPress ShortPixel Image Optimizer Plugin to the latest available version (at least 6.4.4).

Credits

  • daroo | Patchstack Bug Bounty Program finder

References

Problem Types

  • CWE-502 Deserialization of Untrusted Data CWE

Impacts

  • CAPEC-586 Object Injection