# CVE-2026-15104: BetterDocs <= 4.6.0 - Authenticated (Custom+) SQL Injection via 'lang' Parameter

> Authenticated attackers with custom-level access can exploit SQL injection in the BetterDocs plugin to extract sensitive database information if a multilingual plugin is active.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Jul 2026
- **Updated:** 10 Jul 2026
- **Also known as:** GHSA-6r9x-hjc8-pghq

## What is CVE-2026-15104?

CVE-2026-15104 is a medium-severity SQL injection vulnerability in wpdevteam BetterDocs –  AI Documentation, Knowledge Base, Docs, Wikis, FAQ with Chatbot, published on 10 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The BetterDocs – AI Documentation, Knowledge Base, Docs, Wikis, FAQ with Chatbot plugin for WordPress is vulnerable to generic SQL Injection via the 'lang' parameter in all versions up to, and including, 4.6.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with custom-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. Exploitation requires a supported multilingual plugin (WPML, Polylang, qTranslate, Weglot, or TranslatePress) to be active on the site, as the vulnerable code path is gated by Helper::is_multilingual_active().

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2026-15104?


## How do I fix CVE-2026-15104?

No fix has been published for CVE-2026-15104 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-15104 being exploited?

There is no known exploitation of CVE-2026-15104 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-15104 and fix it if it is affected.

What it is: CVE-2026-15104 is a medium-severity SQL injection vulnerability in wpdevteam BetterDocs –  AI Documentation, Knowledge Base, Docs, Wikis, FAQ with Chatbot, published on 10 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-15104 in the wild and no public exploit code.

Affected product: wpdevteam BetterDocs –  AI Documentation, Knowledge Base, Docs, Wikis, FAQ with Chatbot. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-15104/ (Markdown: https://insights.sbomify.com/CVE-2026-15104/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-15104
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-15104
- OSV: https://osv.dev/vulnerability/CVE-2026-15104

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-15104/
Summaries are generated and may contain mistakes; the official description above is the record.