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CVE-2026-97339— Complianz GDPR/CCPA Cookie Consent Banner <= 7.5.5 - Unauthenticated Stored Cross-Site Scripting via Comment Content via yotu-wp Cookie-Blocker Filter

Quick assessment

Affected
complianz Complianz GDPR/CCPA Cookie Consent Banner
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 平台的 Complianz GDPR/CCPA Cookie Consent Banner 插件存在存储型跨站脚本（Stored XSS）漏洞，该漏洞通过评论内容利用 yotu-wp Cookie-Blocker 过滤器触发，影响所有 7.5.5 及以下版本。漏洞成因在于输入净化和输出转义不足，使得未认证攻击者能够在网页中注入任意 Web 脚本，这些脚本将在用户访问被注入的页面时执行。该攻击利用仅包含白名单标签的载荷，将可执行令牌以纯文本形式隐藏在带引号的属性值中，从而绕过 WordPress

CVSS 7.2 · High EPSS 0.25% · P16

Affected Version Matrix 1

VendorProduct Version RangeStatus
complianz Complianz GDPR/CCPA Cookie Consent Banner ≤ 7.5.5 affected
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I. Basic Information for CVE-2026-97339

Vulnerability Information
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Vulnerability Title
Complianz GDPR/CCPA Cookie Consent Banner <= 7.5.5 - Unauthenticated Stored Cross-Site Scripting via Comment Content via yotu-wp Cookie-Blocker Filter
Source: CVE Program / CVE List V5
Vulnerability Description
The Complianz GDPR/CCPA Cookie Consent Banner plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content via yotu-wp Cookie-Blocker Filter in all versions up to, and including, 7.5.5 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. The exploit bypasses WordPress's wp_kses comment sanitization because the payload uses only allow-listed tags and hides executable tokens inside quoted attribute values as plain text; the XSS is only realized when Complianz's own output-buffer filter performs str_replace() rewrites that break out of the attribute context, and requires the comment to be approved before it executes for visitors.
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
complianz Complianz GDPR/CCPA Cookie Consent Banner 0 ~ 7.5.5 -

II. Public POCs for CVE-2026-97339

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III. Intelligence Information for CVE-2026-97339

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Patches & Fixes for CVE-2026-97339 (1)

Vendor Advisories for CVE-2026-97339 (1)

Vendor Pages for CVE-2026-97339 (2)

IV. Related Vulnerabilities

Same product: Complianz GDPR/CCPA Cookie Consent Banner
Same vendor: complianz
Same weakness: CWE-79

V. Comments for CVE-2026-97339

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