codepeople Appointment Hour Booking Plugin up to 1.5.97 on WordPress Schedule Calendar List Renderer list_readmore_numberofwords cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, was found in codepeople Appointment Hour Booking Plugin up to 1.5.97. The impacted element is an unknown function of the component Schedule Calendar List Renderer. Executing a manipulation of the argument list_readmore_numberofwords can lead to cross site scripting. This vulnerability is registered as CVE-2026-96573. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in codepeople Appointment Hour Booking Plugin up to 1.5.97. It has been declared as problematic. This vulnerability affects some unknown functionality of the component Schedule Calendar List Renderer. The manipulation of the argument list_readmore_numberofwords with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. CVE summarizes:

The Appointment Hour Booking – Booking Calendar plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via Booking Form Single-Line Field via Schedule Calendar List Renderer in all versions up to, and including, 1.5.97 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the 'list_readmore_numberofwords' Other Parameters setting to be configured with a positive integer value; the default value of 0 bypasses the decode-and-truncate branch entirely and is not exploitable through this sink.

The advisory is shared for download at wordfence.com. This vulnerability was named CVE-2026-96573 since 09/23/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• codepeople

Name

• Appointment Hour Booking Plugin

Version

• 1.5.0
• 1.5.1
• 1.5.2
• 1.5.3
• 1.5.4
• 1.5.5
• 1.5.6
• 1.5.7
• 1.5.8
• 1.5.9
• 1.5.10
• 1.5.11
• 1.5.12
• 1.5.13
• 1.5.14
• 1.5.15
• 1.5.16
• 1.5.17
• 1.5.18
• 1.5.19
• 1.5.20
• 1.5.21
• 1.5.22
• 1.5.23
• 1.5.24
• 1.5.25
• 1.5.26
• 1.5.27
• 1.5.28
• 1.5.29
• 1.5.30
• 1.5.31
• 1.5.32
• 1.5.33
• 1.5.34
• 1.5.35
• 1.5.36
• 1.5.37
• 1.5.38
• 1.5.39
• 1.5.40
• 1.5.41
• 1.5.42
• 1.5.43
• 1.5.44
• 1.5.45
• 1.5.46
• 1.5.47
• 1.5.48
• 1.5.49
• 1.5.50
• 1.5.51
• 1.5.52
• 1.5.53
• 1.5.54
• 1.5.55
• 1.5.56
• 1.5.57
• 1.5.58
• 1.5.59
• 1.5.60
• 1.5.61
• 1.5.62
• 1.5.63
• 1.5.64
• 1.5.65
• 1.5.66
• 1.5.67
• 1.5.68
• 1.5.69
• 1.5.70
• 1.5.71
• 1.5.72
• 1.5.73
• 1.5.74
• 1.5.75
• 1.5.76
• 1.5.77
• 1.5.78
• 1.5.79
• 1.5.80
• 1.5.81
• 1.5.82
• 1.5.83
• 1.5.84
• 1.5.85
• 1.5.86
• 1.5.87
• 1.5.88
• 1.5.89
• 1.5.90
• 1.5.91
• 1.5.92
• 1.5.93
• 1.5.94
• 1.5.95
• 1.5.96
• 1.5.97

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Entryinfo

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