Threat intelligence

Image Optimizer <= 1.7.4 - Authenticated (Author+) Arbitrary File Deletion via Post Meta Field Injection

CVE-2026-5821 · image-optimization

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Image Optimization at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Image Optimizer <= 1.7.4 - Authenticated (Author+) Arbitrary File Deletion via Post Meta Field Injection
Affected software: image-optimization(Plugin)
Affected versions: ≤ 1.7.4
Authentication: Authenticated (see advisory title)
Vulnerability type: Other
CVE: CVE-2026-5821
Published: 1 July 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source: Data imported from Wordfence Intelligence (advisory a1a00374-e9d6-46f9-a28c-cb7768505787). Methodology and redistribution notes

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