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Threat intelligence

WP Rocket <= 3.21.0.1 - Unauthenticated Stored Cross-Site Scripting via Picture Source Attributes in rocket_beacon Endpoint

CVE-2026-5934 · wp-rocket

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

Vulnerability
WP Rocket <= 3.21.0.1 - Unauthenticated Stored Cross-Site Scripting via Picture Source Attributes in rocket_beacon Endpoint
Affected software
wp-rocket(Plugin)
Affected versions
  • ≤ 3.21.0.1
Authentication
Unauthenticated
Vulnerability type
Cross-site scripting
Published
27 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 3560bf50-2190-4469-9d92-b6b59f118324). Methodology and redistribution notes

Check whether your installed version is affected

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