CVE-2023-22521high

CVE-2023-22521: high-severity vulnerability in Atlassian Crowd Data Center

Published · Updated

Follow this CVE+ Monitor Crowd Data Center+ Monitor Crowd Server

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8epss 1.2%
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
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Affected products
Atlassian · Crowd Data CenterAtlassian · Crowd Server
Related CVEs — Atlassian Crowd Data Center

In the same product, most dangerous first.

CVE-2026-21589CRITICALCVE-2026-21589EPSS 99.7%KEVCVE-2022-26136CRITICALCVE-2022-26136EPSS 5.7%CVE-2022-26137HIGHCVE-2022-26137EPSS 2.4%CVE-2022-43782CRITICALCVE-2022-43782EPSS 1.0%CVE-2026-21582HIGHCVE-2026-21582EPSS 0.5%CVE-2026-21569HIGHCVE-2026-21569EPSS 0.3%