Threat intelligence

Booking Calendar <= 11.4.2 - Unauthenticated Stored Cross-Site Scripting

CVE-2026-59558 · booking

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

Vulnerability: Booking Calendar <= 11.4.2 - Unauthenticated Stored Cross-Site Scripting
Affected software: booking(Plugin)
Affected versions: ≤ 11.4.2
Authentication: Unauthenticated
Vulnerability type: Cross-site scripting
CVE: CVE-2026-59558
Published: 27 July 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 73809551-b925-4789-b059-b9e60743f693). Methodology and redistribution notes

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