CVE-2025-66511 Nextcloud Calendar app used predictable proposal participant tokens

Nextcloud Calendar is a calendar app for Nextcloud. Prior to 6.0.3, the Calendar app generates participant tokens for meeting proposals using a hash function, allowing an attacker to compute valid participant tokens, which allowed them to request details and submit dates in meeting proposals. The...

CVE-2025-66511 Nextcloud Calendar app used predictable proposal participant tokens

Nextcloud Calendar is a calendar app for Nextcloud. Prior to 6.0.3, the Calendar app generates participant tokens for meeting proposals using a hash function, allowing an attacker to compute valid participant tokens, which allowed them to request details and submit dates in meeting proposals. The...

CVE-2025-66511

The CVE-2025-66511 issue affects Nextcloud Calendar prior to version 6.0.3. It stems from insecure generation of meeting proposal participant tokens (not purely random; based on a hash function), which enables an attacker to compute valid tokens and abuse them to view details and submit dates in ...

Calendar app used predictable proposal participant tokens

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Calendar app allowed booking appointments without the generated token

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Calendar attachments of local files are offered to downloaded

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CVE-2025-12804

The Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin 'bookingcalendar' shortcode in all versions up to, and including, 10.14.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for...

CVE-2025-12804

CVE-2025-12804 : WordPress Booking Calendar plugin (booking calendar) is vulnerable to Stored Cross-Site Scripting via the plugin’s bookingcalendar shortcode in all versions up to and including 10.14.6 due to insufficient input sanitization and output escaping. Exploitation requires authenticated...

CVE-2025-12804 Booking Calendar <= 10.14.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via bookingcalendar Shortcode

The Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin 'bookingcalendar' shortcode in all versions up to, and including, 10.14.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for...

CVE-2025-12804 Booking Calendar <= 10.14.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via bookingcalendar Shortcode

The Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin 'bookingcalendar' shortcode in all versions up to, and including, 10.14.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for...

EUVD-2025-201323

The Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin 'bookingcalendar' shortcode in all versions up to, and including, 10.14.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for...

PT-2025-49289

Name of the Vulnerable Software and Affected Versions Nextcloud Calendar versions prior to 4.7.19 Nextcloud Calendar versions prior to 5.5.6 Nextcloud Calendar versions prior to 6.0.1 Description The Nextcloud Calendar application contained a flaw where appointments could be booked without knowin...

Nextcloud Calendar 安全漏洞

Nextcloud Calendar is an open source calendar application from Nextcloud. A security vulnerability exists in Nextcloud Calendar versions prior to 4.7.17 and prior to 5.2.4, which stems from a malicious user being able to create specially crafted attachments that could result in files being...

PT-2025-49266

Nextcloud Calendar is a calendar app for Nextcloud. Prior to 6.0.3, the Calendar app generates participant tokens for meeting proposals using a hash function, allowing an attacker to compute valid participant tokens, which allowed them to request details and submit dates in meeting proposals. The...

PT-2025-49186

The Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin 'bookingcalendar' shortcode in all versions up to, and including, 10.14.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for...

Nextcloud Calendar 安全漏洞

Nextcloud Calendar is an open source calendar application from Nextcloud. A security vulnerability exists in Nextcloud Calendar versions prior to 4.7.19, prior to 5.5.6, and prior to 6.0.1, which stems from the calendar application allowing blind booking of meetings, which could lead to...

Nextcloud Calendar 安全特征问题漏洞

Nextcloud Calendar is a Nextcloud open source calendar application. Nextcloud Calendar suffers from a security signature issue vulnerability that stems from an insecure way of generating meeting proposal participant tokens, which can be exploited by an attacker to cause the tokens to be computed...

WordPress plugin Booking Calendar 跨站脚本漏洞

WordPress and WordPress plugin are both products of the WordPress Foundation.WordPress is a blogging platform developed using the PHP language. The platform has the ability to host personal blog sites on PHP and MySQL based servers.WordPress plugin is an application plugin. A cross-site scripting...

PT-2025-49290

Name of the Vulnerable Software and Affected Versions Nextcloud Calendar versions prior to 4.7.17 Nextcloud Calendar versions prior to 5.2.4 Description A malicious user could create a calendar event with a specially crafted attachment that links to a file on the same Nextcloud server. This actio...

CVE-2025-13756

The Fluent Booking plugin for WordPress is vulnerable to unauthorized calendar import and management due to a missing capability check on the "importCalendar" function in all versions up to, and including, 1.9.11. This makes it possible for authenticated attackers, with subscriber level access an...