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CVE-2026-7543— Breakdance <= 2.7.1 - Unauthenticated Stored Cross-Site Scripting via Webhook Action Details

Quick assessment

Affected
Breakdance Breakdance
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

soflyy breakdance是soflyy个人开发者开源的一款可视化WordPress网站构建器。 Soflyy Breakdance 2.7.1及之前版本存在跨站脚本漏洞，该漏洞源于输入清理和输出转义不足，通过'fields'参数可能受到存储型跨站脚本攻击，导致未经身份验证的攻击者注入任意Web脚本，在用户访问受感染页面时执行。

CVSS 7.2 · High EPSS 0.32% · P22

Affected Version Matrix 1

VendorProduct Version RangeStatus
Breakdance Breakdance ≤ 2.7.1 affected
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I. Basic Information for CVE-2026-7543

Vulnerability Information
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Vulnerability Title
Breakdance <= 2.7.1 - Unauthenticated Stored Cross-Site Scripting via Webhook Action Details
Source: CVE Program / CVE List V5
Vulnerability Description
The Breakdance plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'fields' parameter in versions up to, and including, 2.7.1 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.
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
Vulnerability Title
Soflyy Breakdance 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
soflyy breakdance是soflyy个人开发者开源的一款可视化WordPress网站构建器。 Soflyy Breakdance 2.7.1及之前版本存在跨站脚本漏洞，该漏洞源于输入清理和输出转义不足，通过'fields'参数可能受到存储型跨站脚本攻击，导致未经身份验证的攻击者注入任意Web脚本，在用户访问受感染页面时执行。
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
Breakdance Breakdance 0 ~ 2.7.1 -

II. Public POCs for CVE-2026-7543

# POC Description Source Link Shenlong Link
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default-local-qwen3.6 · 12410 chars
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III. Intelligence Information for CVE-2026-7543

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Vendor Advisories for CVE-2026-7543 (2)

IV. Related Vulnerabilities

Same product: Breakdance
Same vendor: Breakdance
Same weakness: CWE-79

V. Comments for CVE-2026-7543

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