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CVE-2026-79663

Ech0 before 4.7.3 Stored XSS via RSS feed tag names PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
lin-snow / Ech0affected 0 before 4.7.3; unaffected 4.7.3

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.