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CVE-2023-29400— Improper handling of empty HTML attributes in html/template

Quick assessment

Affected
Go standard library html/template
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.

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，该漏洞源于对空HTML属性处理不当。

AI Predicted 4.3 Difficulty: Moderate EPSS 1.04% · P63

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-29400

Vulnerability Information
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Vulnerability Title
Improper handling of empty HTML attributes in html/template
Source: CVE Program / CVE List V5
Vulnerability Description
Templates containing actions in unquoted HTML attributes (e.g. "attr={{.}}") executed with empty input can result in output with unexpected results when parsed due to HTML normalization rules. This may allow injection of arbitrary attributes into tags.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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，该漏洞源于对空HTML属性处理不当。
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-2023-29400

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III. Intelligence Information for CVE-2023-29400

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Other References for CVE-2023-29400 (3)

Same Patch Batch · Go standard library · 2023-05-11 · 3 CVEs total

CVE-2023-24540 Improper handling of JavaScript whitespace in html/template
CVE-2023-24539 Improper sanitization of CSS values in html/template

IV. Related Vulnerabilities

Same product: html/template
Same vendor: Go standard library

V. Comments for CVE-2023-29400

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