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Fencer Vulns
high 8.0

CVE-2023-22505 json

This High severity RCE (Remote Code Execution) vulnerability known as CVE-2023-22505 was introduced in version 8.0.0 of Confluence Data Cen…

published 2023-07-18 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-26645

cvss
8.0
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

This High severity RCE (Remote Code Execution) vulnerability known as CVE-2023-22505 was introduced in version 8.0.0 of Confluence Data Center & Server.

This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 8, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and no user interaction.

Atlassian recommends that you upgrade your instance to latest version. If you're unable to upgrade to latest, upgrade to one of these fixed versions: 8.3.2, 8.4.0. See the release notes ([https://confluence.atlassian.com/doc/confluence-release-notes-327.html).|https://confluence.atlassian.com/doc/confluence-release-notes-327.html).] You can download the latest version of Confluence Data Center & Server from the download center ([https://www.atlassian.com/software/confluence/download-archives).|https://www.atlassian.com/software/confluence/download-archives).]

This vulnerability was discovered by a private user and reported via our Bug Bounty program.

Patch / fix

  • Atlassian Confluence Data Center < 8.0.0, >= 8.3.2, >= 8.4.0
  • Atlassian Confluence Server < 8.0.0, >= 8.3.2, >= 8.4.0
  • atlassian confluence_data_center 8.3.2
  • atlassian confluence_server 8.3.2

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

2.06% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 8.0 CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Atlassian Confluence Data Center
  • Atlassian Confluence Server
  • atlassian confluence_data_center
  • atlassian confluence_server

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.