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CVE-2026-21580: Stored XSS in Atlassian Confluence Data CenterCVE-2026-21580 0 CVE-2026-21580 is a high severity vulnerability in Atlassian Confluence Data Center and Server that allows unauthenticated attackers to execute stored cross-site scripting (XSS) attacks, escalate privileges, and exploit security misconfigurations. The flaw affects multiple versions starting from 7.1.1 through various releases up to 10.2.0. Atlassian recommends upgrading to fixed versions 9.2.21 or later and 10.2.13 or later to remediate this issue. Join the discussion | CVE Database V5 | 08/18/2026, 22:00:00 UTC Added: 08/18/2026, 22:05:30 UTC |
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