CVE-2026-35046Public exploitNetwork attack vector

Stored CSS injection via allowed style tags

Published Apr 6, 2026 · Updated Apr 6, 2026

Stored CSS injection in Tandoor Recipes before 2.6.4 allows remote authenticated users to persist arbitrary CSS in recipe instructions. The bleach.clean() tag allowlists in custom_tags.py and template_helper.py accept style elements, so the API stores and returns their CSS unchanged. Execution requires a client that renders instructions_markdown as HTML; the default Vue frontend strips style tags, while affected clients permit UI redressing and CSS-based data disclosure.

CVSS severity5.4
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored CSS injection in Tandoor Recipes before 2.6.4 allows remote authenticated users to persist arbitrary CSS in recipe instructions. The bleach.clean() tag allowlists in custom_tags.py and template_helper.py accept style elements, so the API stores and returns their CSS unchanged. Execution requires a client that renders instructions_markdown as HTML; the default Vue frontend strips style tags, while affected clients permit UI redressing and CSS-based data disclosure.

The record

CVE
CVE-2026-35046
Published
Apr 6, 2026
Updated
Apr 6, 2026
Vendor
Tandoor Recipes
Product
Tandoor Recipes
Classifications
CWE-79, T1056.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.6.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tandoor Recipes · Tandoor Recipesversion=< 2.6.4

Published CVSS scores

5.4GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1056.002Input Capture: GUI Input Capture

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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