High severity · published Aug 13, 2021
CVE-2021-37693
Discourse is an open-source platform for community discussion
7.5
CVSS
0.8%
EPSS
No
On KEV
Description
Discourse is an open-source platform for community discussion. In Discourse before versions 2.7.8 and 2.8.0.beta4, when adding additional email addresses to an existing account on a Discourse site an email token is generated as part of the email verification process. Deleting the additional email address does not invalidate an unused token which can then be used in other contexts, including reseting a password.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
Discourse · Discourse
before 2.7.8; 2.8.0; 2.8.0; 2.8.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-37693
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-37693
Patch
https://github.com/discourse/discourse/commit/fb14e50741a4880cda22244eded8858e2f5336ef
Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-9377-96f4-cww4
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