CVE-2026-1083

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{}

{"analysis": {"en": {"generated_at": "2026-04-15T21:34:31.639263+00:00", "value": {"mitigation_remediation": ["Upgrade the Appointment Hour Booking \u2013 Booking Calendar plugin to version 1.5.61 or later to remove the unsanitized input handling.", "Limit the use of the form builder to trusted administrator accounts only or implement IP\u2011based access restrictions to prevent broader exposure.", "Verify that the WordPress setting 'unfiltered_html' is disabled for all user roles except the true administrators and remove any unintended elevated permissions.", "Optionally, avoid configuring 'Min length/characters' and 'Max length/characters' with non\u2011numeric values; use numeric\u2011only configurations to reduce input fields that could carry scripts."], "summary": {"action": "Patch Now", "impact": "Stored Cross\u2011Site Scripting via form field configuration"}, "threat_synthesis": {"affected_systems": "WordPress sites running Appointment Hour Booking \u2013 Booking Calendar version 1.5.60 or earlier, including installations that use an unfiltered_html setting restricted to trusted users and are configured as multi\u2011site networks. The plugin must be present on a network where administrators can modify form field settings.", "description_and_impact": "The Appointment Hour Booking \u2013 Booking Calendar plugin contains a stored cross\u2011site scripting flaw that allows authenticated administrators to inject arbitrary JavaScript by setting the 'Min length/characters' and 'Max length/characters' options. The injected script is stored and executed each time any user opens the form builder interface. No other privilege escalation is required beyond administrator access, and the vulnerability is only present when the WordPress unfiltered_html capability is disabled on a multi\u2011site installation.", "risk_and_exploitability": "The issue scores a CVSS of 4.4 and has an EPSS probability of less than 1\u202f%. It is not cataloged in the CISA KEV list. Exploitation requires an attacker to be logged in as an administrator or higher and to modify form field settings. Once injected, the script will run on any user who accesses the form builder, affecting all users who load that interface."}}}}, "created": "2026-01-28T12:21:41.579944+00:00", "updated": "2026-04-15T21:45:14.139874+00:00", "vendors": ["codepeople", "codepeople$PRODUCT$appointment_booking_calendar", "wordpress", "wordpress$PRODUCT$wordpress"]}