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Type a plugin or theme and the version you run, and we’ll show every known vulnerability that affects it, from the 390,007 records in our vulnerability database. The version is listed under Plugins in your WordPress dashboard.
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Plugin · calendar
Calendar
4 known vulnerabilities on record. Add your version above to see which ones affect you.
Jul 27, 2026Calendar: Does not properly escape a user-supplied event field before outputting it inside an HTML attribute on a public-facing pageCVE-2026-14827 · fixed in 1.3.18 · reported by WPScanMedium 6.8
The Calendar WordPress plugin before 1.3.18 does not properly escape a user-supplied event field before outputting it inside an HTML attribute on a public-facing page, allowing users with the Contributor role to inject arbitrary JavaScript that executes in the browser of anyone viewing the calendar.
Dec 23, 2025Calendar: Stored Cross-Site ScriptingCVE-2025-14548 · affects up to 1.3.16 · reported by WordfenceMedium 6.4
The Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'event_desc' parameter in all versions up to, and including, 1.3.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page, granted they can convince an administrator to enable lower privilege users to manage calendar events via the plugin settings.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
May 2, 2024Calendar: SQL InjectionCVE-2024-2831 · affects up to 1.3.14 · reported by WordfenceHigh 8.8
The Calendar plugin for WordPress is vulnerable to SQL Injection via the plugin's shortcodes in all versions up to, and including, 1.3.14 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with contributor access or higher, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
May 27, 2014Cross-site request forgery (CSRF) vulnerability in the Calendar plugin before 1.3.3 for WordPress allows remote attackers to hijack the authentication of users CVE-2013-2698 · fixed in 1.3.3 · reported by PSIRT-CNA@flexerasoftware.comMedium 6.8
Cross-site request forgery (CSRF) vulnerability in the Calendar plugin before 1.3.3 for WordPress allows remote attackers to hijack the authentication of users for requests that add a calendar entry via unspecified vectors.
Versions are matched against the affected ranges published with each record. A plugin can ship a fix under its own numbering, so if something looks off, check the linked record. Want the whole site checked at once? Run the free website check.
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