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CVE-2026-5391— LatePoint <= 5.3.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

Quick assessment

Affected
latepoint Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress LatePoint是WordPress基金会开源的一个在线预约系统插件。 WordPress LatePoint 5.3.2及之前版本存在跨站脚本漏洞，该漏洞源于shortcode_latepoint_resources函数中locations分支的输入清理和输出转义不足，可能导致具有贡献者级别及以上权限的认证攻击者在页面中注入任意Web脚本，当用户访问被注入页面时执行。

CVSS 6.4 · Medium EPSS 0.26% · P16

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

VendorProduct Version RangeStatus
latepoint Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress ≤ 5.3.2 affected
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I. Basic Information for CVE-2026-5391

Vulnerability Information
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Vulnerability Title
LatePoint <= 5.3.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
Source: CVE Program / CVE List V5
Vulnerability Description
The LatePoint plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'btn_wrapper_classes' attribute of the 'latepoint_resources' shortcode in all versions up to, and including, 5.3.2. This is due to insufficient input sanitization and output escaping in the 'locations' branch of the 'shortcode_latepoint_resources' function. 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress LatePoint 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress LatePoint是WordPress基金会开源的一个在线预约系统插件。 WordPress LatePoint 5.3.2及之前版本存在跨站脚本漏洞，该漏洞源于shortcode_latepoint_resources函数中locations分支的输入清理和输出转义不足，可能导致具有贡献者级别及以上权限的认证攻击者在页面中注入任意Web脚本，当用户访问被注入页面时执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
latepoint Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress 0 ~ 5.3.2 -

II. Public POCs for CVE-2026-5391

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III. Intelligence Information for CVE-2026-5391

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Patches & Fixes for CVE-2026-5391 (1)

Vendor Advisories for CVE-2026-5391 (1)

IV. Related Vulnerabilities

Same product: Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress
Same vendor: latepoint
Same weakness: CWE-79

V. Comments for CVE-2026-5391

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