CVE-2023-24540— Improper handling of JavaScript whitespace in html/template
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I. Basic Information for CVE-2023-24540
Vulnerability Information
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Vulnerability Title
Improper handling of JavaScript whitespace in html/template
Source: NVD (National Vulnerability Database)
Vulnerability Description
Not all valid JavaScript whitespace characters are considered to be whitespace. Templates containing whitespace characters outside of the character set "\t\n\f\r\u0020\u2028\u2029" in JavaScript contexts that also contain actions may not be properly sanitized during execution.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
SUSE go 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SUSE go是德国SUSE公司的一种富有表现力的、并发的、垃圾收集的通用/系统编程语言。 SUSE go 1.20版本存在安全漏洞，该漏洞源于对JavaScript空格处理不当。
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 |
|---|---|---|---|---|
| Go standard library | html/template | 0 ~ 1.19.9 | - |
II. Public POCs for CVE-2023-24540
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|---|
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Same Patch Batch · Go standard library · 2023-05-11 · 3 CVEs total
| CVE-2023-29400 | Improper handling of empty HTML attributes in html/template | |
| CVE-2023-24539 | Improper sanitization of CSS values in html/template |
IV. Related Vulnerabilities
Same product: html/template
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Bypass of meta content URL escaping causes XSS in html/templ - CVE-2026-39826
Escaper bypass leads to XSS in html/template - CVE-2026-32289
JsBraceDepth Context Tracking Bugs (XSS) in html/template - CVE-2026-27142
URLs in meta content attribute actions are not escaped in ht - CVE-2024-24785
Errors returned from JSON marshaling may break template esca
Same vendor: Go standard library
- CVE-2026-39823
Bypass of meta content URL escaping causes XSS in html/templ - CVE-2026-39820
Quadratic string concatentation in consumeComment in net/mai - CVE-2026-42499
Quadratic string concatenation in consumePhrase in net/mail - CVE-2026-39826
Escaper bypass leads to XSS in html/template - CVE-2026-33811
Crash when handling long CNAME response in net
V. Comments for CVE-2023-24540
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