CVE-2026-97246

WordPress ShortPixel Image Optimizer plugin <= 6.5.5 - PHP Object Injection vulnerability

Published Sep 30, 2026 CVSS 3.1 · 4.9 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Update the WordPress ShortPixel Image Optimizer plugin to the latest available version (at least 6.5.6).

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Description Subscriber PHP Object Injection in ShortPixel Image Optimizer <= 6.5.5 versions. 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.
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Subscriber PHP Object Injection in ShortPixel Image Optimizer <= 6.5.5 versions.
Title WordPress ShortPixel Image Optimizer plugin <= 6.5.5 - PHP Object Injection vulnerability
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N'}

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
Patchstack
Published
Updated
Oct 20, 2026, 1:59 PM
Reserved
Sep 24, 2026, 10:23 AM
Status
Deferred
Published
Sep 30, 2026, 1:17 PM
Modified
Oct 20, 2026, 2:17 PM