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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/TandoorRecipes/recipes/security/advisories/GHSA-9hhh-g2fc-r8x2 Exploit, Vendor Advisory
- https://github.com/TandoorRecipes/recipes/security/advisories/GHSA-9hhh-g2fc-r8x2 Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.4 · tandoorNVD modified 2026-10-24 13:10
Affected (CPE criteria) 1
cpe:2.3:a:tandoor:recipes:*:*:*:*:*:*:*:*
References 3
- https://github.com/TandoorRecipes/recipes/releases/tag/2.6.4 Release Notes
- https://github.com/TandoorRecipes/recipes/security/advisories/GHSA-9hhh-g2fc-r8x2 Exploit, Vendor Advisory
- https://github.com/TandoorRecipes/recipes/security/advisories/GHSA-9hhh-g2fc-r8x2 Exploit, Vendor Advisory