Description
Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. Prior to 2.6.4, Tandoor Recipes allows authenticated users to inject arbitrary <style> tags into recipe step instructions. The bleach.clean() sanitizer explicitly whitelists the <style> tag, causing the backend to persist and serve unsanitized CSS payloads via the API. Any client consuming instructions_markdown from the API and rendering it as HTML without additional sanitization will execute attacker-controlled CSS — enabling UI redressing, phishing overlays, visual defacement, and CSS-based data exfiltration. This vulnerability is fixed in 2.6.4.
Affected products
tandoor: recipes
References3
- github.com/TandoorRecipes/recipes/security/advisories/GHSA-9hhh… ExploitVendor Advisory
- github.com/TandoorRecipes/recipes/security/advisories/GHSA-9hhh… ExploitVendor Advisory
- github.com/TandoorRecipes/recipes/releases/tag/2.6.4 Release Notes
Metrics
- CVSS 3.1
-
5.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 7 · as of 12 November 2026
- CWE
- CWE-79
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