CVE-2026-97246: WordPress ShortPixel Image Optimizer plugin <= 6.5.5 - PHP Object Injection vulnerability

Severity: medium (CVSS 4.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-30 · updated 2026-10-20
Weakness: CWE-502

Description

Deserialization of Untrusted Data vulnerability in ShortPixel ShortPixel Image Optimizer shortpixel-image-optimiser allows Object Injection.This issue affects ShortPixel Image Optimizer: from n/a through 6.5.5.

Affected products

ShortPixel Image Optimizer: through 6.5.5

References

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

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