Subscriber PHP Object Injection in ShortPixel Image Optimizer <= 6.5.5 versions.
https://patchstack.com/database/wordpress/plugin/shortpixel-image-optimiser/vulnerability/wordpress-shortpixel-image-optimizer-plugin-6-5-5-php-object-injection-vulnerability?_s_id=cve
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-89910
Source: Mitre, NVD
Published: 2026-09-30
Updated: 2026-09-30
Base Score: 3.6
Vector: CVSS2#AV:N/AC:H/Au:S/C:P/I:P/A:N
Severity: Low
Base Score: 4.9
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
Severity: Medium
EPSS: 0.00221