CVE-2023-22521 Details
This High severity RCE (Remote Code Execution) vulnerability was introduced in version 3.4.6 of Crowd Data Center and Server.

This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 8.0, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires no user interaction.

Atlassian recommends that Crowd Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:
Crowd Data Center and Server 3.4: Upgrade to a release greater than or equal to 5.1.6
Crowd Data Center and Server 5.2: Upgrade to a release greater than or equal to 5.2.1

See the release notes ([https://confluence.atlassian.com/crowd/crowd-release-notes-199094.html]). You can download the latest version of Crowd Data Center and Server from the download center ([https://www.atlassian.com/software/crowd/download-archive]).

This vulnerability was discovered by m1sn0w and reported via our Bug Bounty program
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2023-22521
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.86 Probability of exploitation activity being observed over the next 30 days (74th percentile)
CVSS score for CVE-2023-22521
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
8.8 High
Products affected by CVE-2023-22521
Crowd 3.4.5
Crowd 3.7.0
Crowd 3.7.1
Crowd 4.0.0
Crowd 4.1.0
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Not available
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CVE-2023-22521 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
DE 4 22.22%
US 4 22.22%
SA 3 16.67%
FI 2 11.11%
NL 2 11.11%
SK 2 11.11%
IN 1 5.56%

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CVE-2023-22521 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 11 84.62%
Telecommunications 2 15.38%

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