CVE-2026-6393 json
BetterDocs <= 4.3.11 - Missing Authorization to Authenticated (Subscriber+) Unauthorized AI API Usage
published 2026-04-24 6 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-25394
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 19%
- public exploits
- 0
- none known
Summary
The BetterDocs plugin for WordPress is vulnerable to Missing Authorization in versions up to and including 4.3.11. This is due to a missing capability check in the generate_openai_content_callback() function, which relies solely on a nonce rather than verifying user permissions. This makes it possible for authenticated attackers, with subscriber-level access and above, to trigger OpenAI API calls using the site's configured API key with arbitrary user-controlled prompts, leading to unauthorized consumption of the site owner's paid AI API quota.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6 mo ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected products
- wpdevteam BetterDocs – Knowledge Base Docs & FAQ Solution for Elementor & Block Editor
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/432b11be-174d-45d6-aa3b-2fbfa85ec17a?source=cve
- plugins.trac.wordpress.org /browser/betterdocs/trunk/includes/Core/WriteWithAI.php#L138
- plugins.trac.wordpress.org /browser/betterdocs/tags/4.3.6/includes/Core/WriteWithAI.php#L138
- plugins.trac.wordpress.org /browser/betterdocs/trunk/includes/Core/WriteWithAI.php#L31
- plugins.trac.wordpress.org /browser/betterdocs/tags/4.3.6/includes/Core/WriteWithAI.php#L31
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3512640%40betterdocs&new=3512640%40betterdocs&sfp_email=&sfph_m
Sources
- CVE List CVE-2026-6393
- NVD CVE-2026-6393
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.