MediumVulnerabilityLLM-specific

CVE-2026-6393: BetterDocs WordPress plugin missing authorization in OpenAI content generation

Source: NVD(opens in a new tab)
Identifier: CVE-2026-6393
Published: April 24, 2026
Record updated: October 9, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.3%

Summary

CVE-2026-6393 affects the BetterDocs plugin for WordPress in versions up to and including 4.3.11. The generate_openai_content_callback() function lacks a capability check and relies only on a nonce, so authenticated users with subscriber-level access and above can trigger OpenAI API calls with arbitrary prompts. Each call uses the site's configured API key, consuming the site owner's paid AI API quota.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Details

Scores and exploitation

CVSS score: 4.3(medium)
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector: network
Attack complexity: low
Privileges required: low
User interaction: none
EPSS: 0.3%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 9, 2026.
Disclosure date: April 24, 2026

Weaknesses and techniques

Weakness (CWE): CWE-862
Attack pattern (CAPEC): CAPEC-122

Affected

Vendors: OpenAI

Classification

Attack type: Other
Attack sophistication: Trivial
AI component targeted: API
Impact: Confidentiality,
Availability
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-6393

First tracked: April 24, 2026 at 08:10 AM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 90% (self-assessed)

Summary

Mitigation

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