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CVE PROGRAM SOURCE RECORD4.8 Medium

CVE-2026-79663

Ech0 before 4.7.3 Stored XSS via RSS feed tag names

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Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

Ech0 before 4.7.3 contains a stored cross-site scripting vulnerability in the public RSS feed where tag names and markdown content are rendered without HTML escaping. Attackers with admin privileges can inject malicious tag names or raw HTML in echo content that executes as JavaScript in RSS readers that render HTML-type summaries, affecting anonymous subscribers and other users.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

lin-snow Ech0

Default version status: unaffected

  • 0 to < 4.7.3affected
  • 4.7.3unaffected
pkg:golang/github.com/lin-snow/Ech0

References