CVE-2023-22504

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-25 · updated 2026-06-17
Weakness: CWE-434

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.

Affected products

Atlassian Confluence Data Center: before 7.13.17; from 7.14.0 before 7.19.9; from 7.20.0 before 8.2.2 — fixed in 7.13.17, 7.19.9, 8.2.2

How to fix

Upgrade to a fixed version: Atlassian Confluence Data Center 7.13.17, 7.19.9, 8.2.2. Check the vendor advisory for mitigations.

References

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

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