Is CVE-2021-22967 in the CISA KEV catalog?

No. CVE-2021-22967 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-22967?

CVE-2021-22967 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-22967?

CVE-2021-22967 has an EPSS score of 1.11% (62th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-22967?

Upgrade concrete cms to 8.5.7 or later.

CVE & CISA-KEV Catalog

CVE-2021-22967

HIGH

7.5

CVSS v3

NVD

Description

In Concrete CMS (formerly concrete 5) below 8.5.7, IDOR Allows Unauthenticated User to Access Restricted Files If Allowed to Add Message to a Conversation.To remediate this, a check was added to verify a user has permissions to view files before attaching the files to a message in "add / edit message”.Concrete CMS security team gave this a CVSS v3.1 score of 4.3 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NCredit for discovery Adrian H

CWE-639Authorization Bypass Through User-Controlled Key

How to fix

Remediation Available

concrete cmsNVD

Affected:< 8.5.7Fixed in:8.5.7CVE-2021-22967derived 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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.11%probability of exploitation in 30 days

62ndpercentile

Moderate risk: more likely to be exploited than 62% of all known CVEs.

References

Vendor Advisory1

documentation.concretecms.org

Other references1

hackerone.com

Related Vulnerabilities

Other CWE-639 (Authorization Bypass Through User-Controlled Key) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-6875	Critical	9.8	90%	-	-
CVE-2024-46982	High	7.5	61%	-	Fix
CVE-2021-45428	Critical	9.8	57%	-	-
CVE-2019-17382	Critical	9.1	54%	-	Fix
CVE-2019-13360	Critical	9.8	24%	-	-
CVE-2023-48783	Medium	5.4	22%	-	Fix

Embed a live status badge for CVE-2021-22967

Markdown

[![CVE-2021-22967](https://tridentstack.com/cve/badge/CVE-2021-22967.svg)](https://tridentstack.com/cve/CVE-2021-22967)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-22967"><img src="https://tridentstack.com/cve/badge/CVE-2021-22967.svg" alt="CVE-2021-22967"></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.