Threat intelligence

PPWP – Password Protect Pages <= 1.9.18 - Authenticated (Contributor+) PHP Object Injection via post_protection_roles

CVE-2026-0551 · password-protect-page

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

Vulnerability: PPWP – Password Protect Pages <= 1.9.18 - Authenticated (Contributor+) PHP Object Injection via post_protection_roles
Affected software: password-protect-page(Plugin)
Affected versions: ≤ 1.9.18
Authentication: Authenticated (see advisory title)
Vulnerability type: Other
CVE: CVE-2026-0551
Published: 22 August 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 b8f53282-740e-4ac3-a2e1-7a97893e3355). Methodology and redistribution notes

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