Threat intelligence

Modernize <= 3.4.0 - Authenticated (Contributor+) Stored Cross-Site Scripting

CVE-2025-53342 · modernize

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

Vulnerability: Modernize <= 3.4.0 - Authenticated (Contributor+) Stored Cross-Site Scripting
Affected software: modernize(Theme)
Affected versions: ≤ 3.4.0
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2025-53342
Published: 14 August 2025
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 713b4fbc-7a46-40b1-8c4e-088a9859d7da). Methodology and redistribution notes

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