How severe is CVE-2023-22504?

CVE-2023-22504 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-22504 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-22504?

CVE-2023-22504 affects Atlassian Confluence Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-22504?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-22504 published?

CVE-2023-22504 was published on 2023-05-25 and last updated on 2026-06-17.

CVE-2023-22504

CVE-2023-22504 is a medium-severity vulnerability in Atlassian Confluence Server with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Atlassian Confluence Server
Published: 2023-05-25
Last modified: 2026-06-17

Description

Affected versions of Atlassian Confluence Server allow remote attackers who have read permissions to a page, but not write permissions, to upload attachments via a Broken Access Control vulnerability in the attachments feature.

Frequently asked questions

What is CVE-2023-22504?: Affected versions of Atlassian Confluence Server allow remote attackers who have read permissions to a page, but not write permissions, to upload attachments via a Broken Access Control vulnerability in the attachments feature.
How severe is CVE-2023-22504?: CVE-2023-22504 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-22504 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-22504?: CVE-2023-22504 affects Atlassian Confluence Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-22504?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-22504 published?: CVE-2023-22504 was published on 2023-05-25 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/CONFSERVER-83218

Affected products (1)

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

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