# Authentication Bypass in ADOdb/ADOdb

Advisory record · `GHSA-65mj-7c86-79jf`

- **Identifiers:** `GHSA-65mj-7c86-79jf` · `CVE-2021-3850` · `PKSA-mmtx-twsx-p5nt`
- **State:** Confirmed
- **Severity:** CVSS 9.1 Critical
- **Critical:** Yes: CVSS 9+
- **Weakness (CWE):** [CWE-287](https://cwe.mitre.org/data/definitions/287.html) · [CWE-305](https://cwe.mitre.org/data/definitions/305.html)
- **Tags:** [Authentication bypass](https://agentprime.io/advisories/tag/auth-bypass.md) · [CWE-305](https://agentprime.io/advisories/tag/cwe-305.md)
- **Published:** 27 Jan 2022
- **Updated:** 8 Nov 2023
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 27 Jan 2022, 15:23 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- CVSS score 9.1: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected packages

- `adodb/adodb-php` (Packagist): affected `<5.20.21 || >=5.21.0, <5.21.4`; fixed in `5.20.21`, `5.21.4`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 9.1 Critical, CVSS 3.0: `CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`, from CNA (@huntrdev)

- **CISA KEV:** Not listed.
- **EPSS:** 0.022, the 82nd percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 27 Jan 2022. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-65mj-7c86-79jf](https://github.com/advisories/GHSA-65mj-7c86-79jf)
- [OSV: GHSA-65mj-7c86-79jf](https://osv.dev/vulnerability/GHSA-65mj-7c86-79jf)
- <https://github.com/ADOdb/ADOdb/security/advisories/GHSA-65mj-7c86-79jf>
- <https://nvd.nist.gov/vuln/detail/CVE-2021-3850>
- <https://github.com/ADOdb/ADOdb/issues/793>
- <https://github.com/ADOdb/ADOdb/commit/952de6c4273d9b1e91c2b838044f8c2111150c29>
- <https://github.com/ADOdb/ADOdb/commit/b4d5ce70034c5aac3a1d51d317d93c037a0938d2>
- <https://github.com/ADOdb/ADOdb>
- <https://huntr.dev/bounties/bdf5f216-4499-4225-a737-b28bc6f5801c>
- <https://lists.debian.org/debian-lts-announce/2022/02/msg00006.html>
- <https://www.debian.org/security/2022/dsa-5101>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-65mj-7c86-79jf>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-65mj-7c86-79jf/>. Everything for agents: <https://agentprime.io/llms.txt>.