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CVE-2026-50133— Hugo: XSS via text/html content files

Quick assessment

Affected
gohugoio hugo
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.

gohugo hugo是gohugo团队开源的一个生成静态网站的框架。 GoHugo Hugo 0.162.0之前版本存在跨站脚本漏洞，该漏洞源于接受多种标记格式的内容文件，将映射为text/html媒体类型的文件直接输出到渲染页面，可能导致存储型跨站脚本攻击。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.33% · P26

Possible ATT&CK Techniques 1 AI

T1132 · Data Encoding

Affected Version Matrix 1

VendorProduct Version RangeStatus
gohugoio hugo < 0.162.0 affected
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I. Basic Information for CVE-2026-50133

Vulnerability Information
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Vulnerability Title
Hugo: XSS via text/html content files
Source: CVE Program / CVE List V5
Vulnerability Description
Hugo is a static site generator. Prior to 0.162.0, Hugo accepts content files in several markup formats. Files mapped to the text/html media type (typically .html files under /content, or pages produced by a content adapter that sets content.mediaType = "text/html") had their body emitted verbatim into the rendered page. A site that ingests HTML content from an untrusted source could therefore be served stored cross-site scripting. This vulnerability is fixed in 0.162.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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
GoHugo Hugo 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
gohugo hugo是gohugo团队开源的一个生成静态网站的框架。 GoHugo Hugo 0.162.0之前版本存在跨站脚本漏洞，该漏洞源于接受多种标记格式的内容文件，将映射为text/html媒体类型的文件直接输出到渲染页面，可能导致存储型跨站脚本攻击。
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
gohugoio hugo < 0.162.0 -

II. Public POCs for CVE-2026-50133

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III. Intelligence Information for CVE-2026-50133

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Patches & Fixes for CVE-2026-50133 (1)

Vendor Advisories for CVE-2026-50133 (1)

Vendor Pages for CVE-2026-50133 (1)

Same Patch Batch · gohugoio · 2026-07-06 · 6 CVEs total

CVE-2026-58404 Hugo security.http.urls deny rules bypassed by alternate IPv4 encodings
CVE-2026-58402 Hugo default code block renderer XSS via unescaped code-fence language
CVE-2026-58403 Hugo symlink confinement bypass in os.ReadFile
CVE-2026-50134 Hugo: security.http.urls allow-list bypass via HTTP redirects
CVE-2026-50135 Hugo: Symlink confinement bypass in resources.Get

IV. Related Vulnerabilities

Same product: hugo
Same vendor: gohugoio
Same weakness: CWE-79

V. Comments for CVE-2026-50133

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