Answer in brief
CVE-2026-92161 records a Critical severity (CVSS 9.8) vulnerability in FriendsOfFlarum OAuth: Unauthenticated account takeover via unverified email trust in Discord OAuth provider. The current sources do not mark it as known exploited. The current feed maps fof/oauth (composer), fof/oauth (composer), FriendsOfFlarum/oauth (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps fof/oauth (composer), fof/oauth (composer), FriendsOfFlarum/oauth (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| fof/oauthcomposer | >=2.0.0-beta.1,<2.0.0-beta.4 | 2.0.0-beta.4 |
| fof/oauthcomposer | <1.7.4 | 1.7.4 |
| FriendsOfFlarum/oauthgeneric | <1.7.4 || >=2.0.0-beta.1 <2.0.0-beta.4 | 1.7.4, 2.0.0-beta.4 |
Published upstream
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 25, 2026
FriendsOfFlarum OAuth allows users to log in to Flarum with GitHub, Twitter, Facebook, and other providers. Prior to 1.7.4 and 2.0.0-beta.4, the Discord OAuth provider does not check the verified field returned for an OAuth email before passing the address to Flarum core as trusted through provideTrustedEmail(). When Discord sign-in is enabled, an unauthenticated attacker who knows the email address of a Flarum user can configure a Discord account with that unverified address and a verified phone number, then sign in to cause Flarum to match the trusted address, link the attacker-controlled Discord identity to the existing user, and authenticate as the victim without a password or victim interaction. Exploitation requires that the victim's email address is not already associated with a Discord account, and it can compromise administrator accounts. Other bundled providers were not confirmed to be practically exploitable by this method because their relevant authentication flows return only verified or confirmed email addresses. This issue is fixed in versions 1.7.4 and 2.0.0-beta.4.
Quoted source text, attributed separately from HOL analysis.