XSS in Tandoor Recipes
CVE-2026-35046
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (15.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.001
Affected products
- Tandoor Recipes
- Tandoorrecipes Recipes — versions < 2.6.4
Weakness classification (CWE)
References
- github.com/TandoorRecipes/recipes/security/advisories/GHSA-9hhh-g2fc-r8x2 (Exploit, Vendor Advisory)
- github.com/TandoorRecipes/recipes/releases/tag/2.6.4 (Release Notes)
Frequently asked questions
- What is CVE-2026-35046?
- CVE-2026-35046 is a medium-severity vulnerability in Tandoor Recipes, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-04-06.
- How severe is CVE-2026-35046?
- Medium severity. CVSS v3 base score is 5.4 out of 10.