Is CVE-2021-37693 in the CISA KEV catalog?

No. CVE-2021-37693 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-37693?

CVE-2021-37693 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2021-37693?

CVE-2021-37693 has an EPSS score of 0.83% (53th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-37693?

Upgrade discourse to 2.7.8 or later.

CVE & CISA-KEV Catalog

CVE-2021-37693

MEDIUM

5.3

CVSS v3

NVD

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.

CWE-613 CWE-640

How to fix

Remediation Available

discourseNVD

Affected:< 2.7.8Fixed in:2.7.8CVE-2021-37693derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploit Intelligence

0.83%probability of exploitation in 30 days

53rdpercentile

Moderate risk: more likely to be exploited than 53% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

github.com

Related Vulnerabilities

Other CWE-613 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-2595	Critical	9.8	17%	-	-
CVE-2023-30403	High	7.5	15%	-	-
CVE-2020-27422	Critical	9.8	7.8%	-	-
CVE-2014-3616	Medium	4.3	5.7%	-	Fix
CVE-2021-3144	Critical	9.1	5.2%	-	Fix
CVE-2021-24019	High	8.1	3.8%	-	Fix

Embed a live status badge for CVE-2021-37693

Markdown

[![CVE-2021-37693](https://tridentstack.com/cve/badge/CVE-2021-37693.svg)](https://tridentstack.com/cve/CVE-2021-37693)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-37693"><img src="https://tridentstack.com/cve/badge/CVE-2021-37693.svg" alt="CVE-2021-37693"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.