Bug 2497463 (CVE-2026-50133)

Summary: CVE-2026-50133 github.com/gohugoio/hugo: Hugo: Cross-site Scripting via untrusted HTML content files
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in Hugo, a static site generator. This vulnerability allows a remote attacker to perform stored cross-site scripting (XSS) by ingesting untrusted HTML content files. When a site processes these malicious files, the embedded script is executed verbatim in the rendered page, potentially leading to unauthorized actions or information disclosure in a user's browser.
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Description OSIDB Bzimport 2026-07-06 20:02:41 UTC 
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.