# FriendsOfFlarum OAuth: Unauthenticated account takeover via unverified email trust in Discord OAuth provider

Advisory record · `GHSA-g7vj-c29h-3h5m`

- **Identifiers:** `GHSA-g7vj-c29h-3h5m` · `CVE-2026-92161` · `PKSA-4zg4-dqk9-5wt7`
- **State:** Confirmed
- **Severity:** CVSS 9.8 Critical
- **Critical:** Yes: CVSS 9+
- **Weakness (CWE):** [CWE-345](https://cwe.mitre.org/data/definitions/345.html)
- **Tags:** [CWE-345](https://agentprime.io/advisories/tag/cwe-345.md)
- **Published:** 25 Sept 2026
- **Updated:** 25 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 25 Sept 2026, 15:55 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- CVSS score 9.8: 9.0 or more.

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

## Affected packages

- `fof/oauth` (Packagist): affected `<1.7.4 || >=2.0.0-beta.1, <2.0.0-beta.4`; fixed in `1.7.4`, `2.0.0-beta.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

- 9.8 Critical, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0027, the 19th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 13:54 UTC: First seen by agentprime
- 31 Oct 2026, 13:54 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-g7vj-c29h-3h5m)

## Sources

- [GitHub Advisory Database: GHSA-g7vj-c29h-3h5m](https://github.com/advisories/GHSA-g7vj-c29h-3h5m)
- [OSV: GHSA-g7vj-c29h-3h5m](https://osv.dev/vulnerability/GHSA-g7vj-c29h-3h5m)
- <https://github.com/FriendsOfFlarum/oauth/security/advisories/GHSA-g7vj-c29h-3h5m>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-92161>
- <https://github.com/FriendsOfFlarum/oauth/commit/baca3466b3b7be51c70a7e0ba966901aefeb344a>
- <https://github.com/FriendsOfFlarum/oauth/commit/bb4bf376832e6bb68c579715d2a4b5a92c4a2567>
- <https://github.com/FriendsOfFlarum/oauth>
- <https://github.com/FriendsOfFlarum/oauth/releases/tag/1.7.4>
- <https://github.com/FriendsOfFlarum/oauth/releases/tag/2.0.0-beta.4>

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-g7vj-c29h-3h5m>, 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-g7vj-c29h-3h5m/>. Everything for agents: <https://agentprime.io/llms.txt>.