Vulnerability Details : CVE-2022-39356
Discourse is a platform for community discussion. Users who receive an invitation link that is not scoped to a single email address can enter any non-admin user's email and gain access to their account when accepting the invitation. All users should upgrade to the latest version. A workaround is temporarily disabling invitations with `SiteSetting.max_invites_per_day = 0` or scope them to individual email addresses.
Vulnerability category: BypassGain privilege
Products affected by CVE-2022-39356
- cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta5:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta7:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta6:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta8:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta9:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta10:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-39356
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 43 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-39356
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
8.9
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L |
2.3
|
6.0
|
GitHub, Inc. |
CWE ids for CVE-2022-39356
-
The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.Assigned by: security-advisories@github.com (Secondary)
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-39356
-
https://github.com/discourse/discourse/pull/18817
SECURITY: Fix invite link email validation by davidtaylorhq · Pull Request #18817 · discourse/discourse · GitHubPatch;Third Party Advisory
-
https://github.com/discourse/discourse/security/advisories/GHSA-x8w7-rwmr-w278
User account takeover via invite links · Advisory · discourse/discourse · GitHubThird Party Advisory
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