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Threat intelligence

MW WP Form <= 5.1.3 - Authenticated (Editor+) Stored Cross-Site Scripting via 'memo' Parameter

CVE-2026-8853 · mw-wp-form

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

Vulnerability
MW WP Form <= 5.1.3 - Authenticated (Editor+) Stored Cross-Site Scripting via 'memo' Parameter
Affected software
mw-wp-form(Plugin)
Affected versions
  • ≤ 5.1.3
Authentication
Authenticated (see advisory title)
Vulnerability type
Cross-site scripting
Published
9 June 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 2a6dfdec-c1c6-4300-ab0a-9fd1c550d09f). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Mw Wp Form version against this catalog when the Defence plugin is connected to your WordPress site.