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CVE-2026-92977— Real Cookie Banner: GDPR & ePrivacy Cookie Consent <= 5.3.5 - Unauthenticated Stored Cross-Site Scripting via Comment

Quick assessment

Affected
devowl Real Cookie Banner: GDPR & ePrivacy Cookie Consent
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.

Real Cookie Banner：GDPR 与 ePrivacy Cookie 同意 WordPress 插件存在存储型跨站脚本（XSS）漏洞。该漏洞存在于所有 5.3.5 及更早版本中，原因是输入清理和输出转义不充分。这使得未经身份验证的攻击者可以在页面中注入任意 Web 脚本，这些脚本会在用户访问被注入的页面时执行。 恶意脚本载荷被放置在锚点标签（<a>）的 title 属性中，能够在保存时绕过 WordPress 的 comment kses 过滤器。这是因为在渲染过程中，插件通过页面级正则表达式去除闭合

CVSS 7.2 · High EPSS 0.24% · P14

Affected Version Matrix 1

VendorProduct Version RangeStatus
devowl Real Cookie Banner: GDPR & ePrivacy Cookie Consent ≤ 5.3.5 affected
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I. Basic Information for CVE-2026-92977

Vulnerability Information
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Vulnerability Title
Real Cookie Banner: GDPR & ePrivacy Cookie Consent <= 5.3.5 - Unauthenticated Stored Cross-Site Scripting via Comment
Source: CVE Program / CVE List V5
Vulnerability Description
The Real Cookie Banner: GDPR & ePrivacy Cookie Consent plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment in all versions up to, and including, 5.3.5 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. Malicious script payloads placed in the title attribute of an anchor tag survive WordPress's comment kses filter at save time, as the payload is only promoted to executable HTML attributes when the plugin's page-wide regex strips the closing quote delimiter at render time; exploitability is therefore subject to the standard comment moderation workflow before the comment is publicly displayed.
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
devowl Real Cookie Banner: GDPR & ePrivacy Cookie Consent 0 ~ 5.3.5 -

II. Public POCs for CVE-2026-92977

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III. Intelligence Information for CVE-2026-92977

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Patches & Fixes for CVE-2026-92977 (4)

Vendor Advisories for CVE-2026-92977 (1)

IV. Related Vulnerabilities

Same product: Real Cookie Banner: GDPR & ePrivacy Cookie Consent
Same vendor: devowl
Same weakness: CWE-79

V. Comments for CVE-2026-92977

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