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CVE-2026-15649— Powerkit <= 3.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

Quick assessment

Affected
codesupplyco Powerkit – Supercharge your WordPress Site
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 Powerkit是WordPress基金会开源的一款内容管理增强插件。 WordPress Powerkit 3.1.0及之前版本存在跨站脚本漏洞，该漏洞源于通过Shortcode Attributes的输入清理和输出转义不足，可能导致认证攻击者（贡献者级别及以上）注入任意Web脚本，在用户访问时执行。

CVSS 6.4 · Medium EPSS 0.35% · P26

Affected Version Matrix 1

VendorProduct Version RangeStatus
codesupplyco Powerkit – Supercharge your WordPress Site ≤ 3.1.0 affected
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I. Basic Information for CVE-2026-15649

Vulnerability Information
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Vulnerability Title
Powerkit <= 3.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
Source: CVE Program / CVE List V5
Vulnerability Description
The Powerkit – Supercharge your WordPress Site plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all versions up to, and including, 3.1.0 due to insufficient input sanitization and output escaping. 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 Powerkit 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Powerkit是WordPress基金会开源的一款内容管理增强插件。 WordPress Powerkit 3.1.0及之前版本存在跨站脚本漏洞，该漏洞源于通过Shortcode Attributes的输入清理和输出转义不足，可能导致认证攻击者（贡献者级别及以上）注入任意Web脚本，在用户访问时执行。
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
codesupplyco Powerkit – Supercharge your WordPress Site 0 ~ 3.1.0 -

II. Public POCs for CVE-2026-15649

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III. Intelligence Information for CVE-2026-15649

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Patches & Fixes for CVE-2026-15649 (4)

Other References for CVE-2026-15649 (1)

Same Patch Batch · codesupplyco · 2026-08-01 · 3 CVEs total

CVE-2026-15645 6.4 MEDIUM Powerkit <= 3.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'nav' Sho
CVE-2026-15644 6.4 MEDIUM Powerkit <= 3.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'style' S

IV. Related Vulnerabilities

Same product: Powerkit – Supercharge your WordPress Site
Same vendor: codesupplyco
Same weakness: CWE-79

V. Comments for CVE-2026-15649

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