Appointment Booking Calendar Plugin up to 1.6.8.30 on WordPress Shortcode cross site scripting

Summaryinfo

A vulnerability labeled as problematic has been found in Appointment Booking Calendar Plugin up to 1.6.8.30 on WordPress. This vulnerability affects the function ssa_admin_upcoming_appointments/ssa_admin_upcoming_appointments/ssa_past_appointments of the component Shortcode Handler. The manipulation results in cross site scripting. This vulnerability is identified as CVE-2025-4667. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Appointment Booking Calendar Plugin up to 1.6.8.30 on WordPress. Affected is the function ssa_admin_upcoming_appointments/ssa_admin_upcoming_appointments/ssa_past_appointments of the component Shortcode Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's ssa_admin_upcoming_appointments, ssa_admin_upcoming_appointments, and ssa_past_appointments shortcodes in all versions up to, and including, 1.6.8.30 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

The advisory is available at wordfence.com. This vulnerability is traded as CVE-2025-4667 since 05/13/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-18338). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Appointment Software

Name

• Appointment Booking Calendar Plugin

Version

• 1.6.8.0
• 1.6.8.1
• 1.6.8.2
• 1.6.8.3
• 1.6.8.4
• 1.6.8.5
• 1.6.8.6
• 1.6.8.7
• 1.6.8.8
• 1.6.8.9
• 1.6.8.10
• 1.6.8.11
• 1.6.8.12
• 1.6.8.13
• 1.6.8.14
• 1.6.8.15
• 1.6.8.16
• 1.6.8.17
• 1.6.8.18
• 1.6.8.19
• 1.6.8.20
• 1.6.8.21
• 1.6.8.22
• 1.6.8.23
• 1.6.8.24
• 1.6.8.25
• 1.6.8.26
• 1.6.8.27
• 1.6.8.28
• 1.6.8.29
• 1.6.8.30

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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