CVE-2023-24539— Improper sanitization of CSS values in html/template
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I. Basic Information for CVE-2023-24539
Vulnerability Information
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Vulnerability Title
Improper sanitization of CSS values in html/template
Source: NVD (National Vulnerability Database)
Vulnerability Description
Angle brackets (<>) are not considered dangerous characters when inserted into CSS contexts. Templates containing multiple actions separated by a '/' character can result in unexpectedly closing the CSS context and allowing for injection of unexpected HTML, if executed with untrusted input.
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 注入漏洞
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CSS值清理不正确。
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-2023-24539
| # | POC Description | Source Link | Shenlong Link |
|---|
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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-2023-24540 | Improper handling of JavaScript whitespace 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-2023-24539
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