This High severity Stored XSS vulnerability was introduced in versions 7.13 of Confluence Data Center and Server. This Stored XSS vulnerability, with a CVSS Score of 7.3, allows an authenticated attacker to execute arbitrary HTML or JavaScript code on a victims browser which has high impact to confidentiality, high impact to integrity, no impact to availability, and requires user interaction. Atlassian recommends that Confluence Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions listed on this CVE See the release notes (https://confluence.atlassian.com/doc/confluence-release-notes-327.html). You can download the latest version of Confluence Data Center and Server from the download center (https://www.atlassian.com/software/confluence/download-archives). This vulnerability was reported via our Bug Bounty program.
総合評価: CVE-2024-21686 は中リスク(54/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.89%、55 パーセンタイル) 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-24 | 0.84% | 0.89% | +0.05% |
| 2 | 2026-06-15 | 2.57% | 0.84% | -1.73% |
| 3 | 2026-04-27 | — | 2.57% | — |
EPSS の全履歴 (全 16 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 8.7 | 3.1 | HIGH |
|
2.3 | 5.8 | [email protected] |
| 7.3 | 3.0 | HIGH |
|
2.1 | 5.2 | [email protected] |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| atlassian | confluence_data_center | < 7.19.22 | cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:* |
| atlassian | confluence_data_center | >= 7.20.0, < 8.5.9 | cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:* |
| atlassian | confluence_data_center | >= 8.6.0, < 8.9.1 | cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:* |
| atlassian | confluence_server | < 7.19.22 | cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:* |
| atlassian | confluence_server | >= 7.20.0, < 8.5.9 | cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://confluence.atlassian.com/pages/viewpage.action?pageId=1417150917 | Vendor Advisory |
| https://jira.atlassian.com/browse/CONFSERVER-96134 | Issue Tracking |