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CVE-2026-111111— Prime Slider <= 4.7.2 - Unauthenticated Stored Cross-Site Scripting via Comment Content via Content_Guard Regex Quote-Escape

Quick assessment

Affected
bdthemes Prime Slider – Hero Slider, Carousel, WooCommerce & Post Slider Elementor Addons
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 插件"Prime Slider – Hero Slider, Carousel, WooCommerce & Post Slider Elementor Addons"在所有 4.7.2 及更早版本中存在存储型跨站脚本（Stored XSS）漏洞，原因是其对"comment"参数缺乏充分的输入清理和输出转义。这使得未认证的攻击者能够在页面中注入任意 Web 脚本，当用户访问被注入的页面时，这些脚本将被执行。 该漏洞产生的原因是：核心函数 将提交的标记视为惰性内容（即不执行），但插件随后使用的正则

CVSS 7.2 · High
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I. Basic Information for CVE-2026-111111

Vulnerability Information
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Vulnerability Title
Prime Slider <= 4.7.2 - Unauthenticated Stored Cross-Site Scripting via Comment Content via Content_Guard Regex Quote-Escape
Source: CVE Program / CVE List V5
Vulnerability Description
The Prime Slider – Hero Slider, Carousel, WooCommerce & Post Slider Elementor Addons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 4.7.2 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. This is possible because core wp_filter_kses leaves the submitted markup inert, but the plugin's subsequent regex fallback consumes closing quotes of allowed attribute values containing 'bdt-', promoting previously inert bytes — such as event handlers like onfocus — into real HTML attributes that are then written to the database and rendered without further sanitization.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/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
bdthemes Prime Slider – Hero Slider, Carousel, WooCommerce & Post Slider Elementor Addons 0 ~ 4.7.2 -

II. Public POCs for CVE-2026-111111

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III. Intelligence Information for CVE-2026-111111

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Other References for CVE-2026-111111 (7)

IV. Related Vulnerabilities

Same vendor: bdthemes
Same weakness: CWE-79