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CVE-2026-93878— DiviGear Carousel <= 5.2.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting via update_license AJAX Action

Quick assessment

Affected
Divigear DiviGear Carousel
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 的 DiviGear Carousel 插件在所有 5.2.0 及更早版本中，由于输入过滤和输出转义不足，存在通过 update_license AJAX 操作引发的存储型跨站脚本（Stored XSS）漏洞。该漏洞允许拥有订阅者及以上权限的已认证攻击者，在页面中注入任意 Web 脚本；一旦用户访问被注入的页面，这些脚本便会执行。具体而言，当管理员访问 DiviGear > 激活设置页面时，未经过滤的存储值会被未转义地输出到单引号包裹的 HTML 属性值中，从而触发注入的恶意负载。

CVSS 6.4 · Medium
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I. Basic Information for CVE-2026-93878

Vulnerability Information
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Vulnerability Title
DiviGear Carousel <= 5.2.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting via update_license AJAX Action
Source: CVE Program / CVE List V5
Vulnerability Description
The DiviGear Carousel plugin for WordPress is vulnerable to Stored Cross-Site Scripting via update_license AJAX Action in all versions up to, and including, 5.2.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The injected payload executes when an administrator visits the DiviGear > Activation settings page, where the unsanitized stored value is echoed unescaped into a single-quoted HTML value attribute.
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Divigear DiviGear Carousel 0 ~ 5.2.0 -

II. Public POCs for CVE-2026-93878

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III. Intelligence Information for CVE-2026-93878

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Other References for CVE-2026-93878 (2)

IV. Related Vulnerabilities

Same weakness: CWE-79

V. Comments for CVE-2026-93878

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