How severe is CVE-2023-22505?

CVE-2023-22505 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-22505 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-22505?

CVE-2023-22505 primarily affects Atlassian Confluence Data Center. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-22505?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-22505 published?

CVE-2023-22505 was published on 2023-07-18 and last updated on 2026-06-17.

CVE-2023-22505

CVE-2023-22505 is a high-severity vulnerability in Atlassian Confluence Data Center with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Atlassian Confluence Data Center
Published: 2023-07-18
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-22505?: 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.
How severe is CVE-2023-22505?: CVE-2023-22505 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-22505 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-22505?: CVE-2023-22505 primarily affects Atlassian Confluence Data Center. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-22505?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-22505 published?: CVE-2023-22505 was published on 2023-07-18 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/CONFSERVER-88265

Affected products (2)

cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*

More vulnerabilities in Atlassian Confluence Data Center

CVE-2023-22527 — Critical (CVSS 9.8): A template injection vulnerability on older versions of Confluence Data Center and Server allows an unauthenticated…
CVE-2023-22518 — Critical (CVSS 9.8): All versions of Confluence Data Center and Server are affected by this unexploited vulnerability. This Improper…
CVE-2023-22515 — Critical (CVSS 9.8): Atlassian has been made aware of an issue reported by a handful of customers where external attackers may have…
CVE-2022-26136 — Critical (CVSS 9.8): A vulnerability in multiple Atlassian products allows a remote, unauthenticated attacker to bypass Servlet Filters used…
CVE-2022-26134 — Critical (CVSS 9.8): In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an…
CVE-2021-26084 — Critical (CVSS 9.8): In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an…

All CVEs affecting Atlassian Confluence Data Center →