CVE-2026-115754— serialize-javascript 7.0.1 before 7.1.3 XSS via unescaped </script in function body
Quick assessment
Affected
yahoo serialize-javascript
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.
7.0.1 至 7.1.3 之前的版本存在跨站脚本（XSS）漏洞。攻击者可通过将序列化函数源代码以未转义的 结尾，从而突破 HTML 元素限制。若攻击者能够操控函数的源代码（例如通过伪造 方法），便可利用上下文输出分隔符及后续值，注入可执行的标记（如带有 事件处理程序的 标签）。
Possible ATT&CK Techniques 1 AI
T1059.007 · JavaScript
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I. Basic Information for CVE-2026-115754
Vulnerability Information
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Vulnerability Title
serialize-javascript 7.0.1 before 7.1.3 XSS via unescaped </script in function body
Source: CVE Program / CVE List V5
Vulnerability Description
serialize-javascript from 7.0.1 before 7.1.3 contains a cross-site scripting vulnerability that allows attackers to break out of HTML script elements by ending serialized function source text with an unescaped </script. Attackers controlling a function's source via a spoofed toString() can combine surrounding output delimiters and later values to inject live markup such as img onerror handlers.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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 |
|---|---|---|---|---|
| yahoo | serialize-javascript | 7.0.1 ~ 7.1.3 | - |
|
II. Public POCs for CVE-2026-115754
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-115754 (4)
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🔗 Release v7.1.3 · yahoo/serialize-javascript · GitHub release-notes
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