Threat intelligence

WP Fastest Cache <= 1.5.0 - Unauthenticated Stored Cross-Site Scripting via HTTP Host Header

CVE-2026-19760 · wp-fastest-cache

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

Vulnerability: WP Fastest Cache <= 1.5.0 - Unauthenticated Stored Cross-Site Scripting via HTTP Host Header
Affected software: wp-fastest-cache(Plugin)
Affected versions: ≤ 1.5.0
Authentication: Unauthenticated
Vulnerability type: Cross-site scripting
CVE: CVE-2026-19760
Published: 25 August 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Source: Data imported from Wordfence Intelligence (advisory 69a22238-88e8-4ff5-8e2b-8c58a04ff154). Methodology and redistribution notes

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