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You can search for vulnerabilities managed by JVN (Japan Vulnerability Note) and NVD (National Vulnerability Database).
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To search by CWE, please refer to the CWE Overview and check the CWE number.

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JVN Vulnerability Information

Update Date":June 9, 2026, 10 a.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Impact
Show		 Exploit
PoC
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255081 4.3 警告 アップル
サイバートラスト株式会社
Ruby-lang.org
レッドハット		 - Apple Mac OS X の Ruby WEBrick HTTP サーバにおけるクロスサイトスクリプティングの脆弱性 CWE-79
クロスサイト・スクリプティング（XSS） 		CVE-2010-0541 2011-07-28 10:06 2010-06-15 Show GitHub Exploit DB Packet Storm
255082 5 警告 サイバートラスト株式会社
Ruby-lang.org
レッドハット		 - Ruby の WEBrick におけるウィンドウのタイトルを変更される脆弱性 CWE-20
不適切な入力確認 		CVE-2009-4492 2011-07-28 10:04 2010-01-13 Show GitHub Exploit DB Packet Storm
255083 2.6 注意 Plone Foundation - Plone におけるクロスサイトスクリプティングの脆弱性 CWE-79
クロスサイト・スクリプティング（XSS） 		CVE-2011-1340 2011-07-27 12:02 2011-07-27 Show GitHub Exploit DB Packet Storm
255084 5 警告 Opera Software ASA - Opera におけるサービス運用妨害 (アプリケーションクラッシュ) の脆弱性 CWE-399
リソース管理の問題 		CVE-2011-2626 2011-07-27 10:35 2011-06-28 Show GitHub Exploit DB Packet Storm
255085 5 警告 Opera Software ASA - Opera におけるサービス運用妨害 (アプリケーションクラッシュ) の脆弱性 CWE-399
リソース管理の問題 		CVE-2011-2625 2011-07-27 10:34 2011-06-28 Show GitHub Exploit DB Packet Storm
255086 4.3 警告 Opera Software ASA - Opera におけるサービス運用妨害 (アプリケーションハング) の脆弱性 CWE-399
リソース管理の問題 		CVE-2011-2624 2011-07-27 10:34 2011-06-28 Show GitHub Exploit DB Packet Storm
255087 5 警告 Opera Software ASA - Opera におけるサービス運用妨害 (アプリケーションクラッシュおよびハング) の脆弱性 CWE-noinfo
情報不足 		CVE-2011-2623 2011-07-27 10:33 2011-06-28 Show GitHub Exploit DB Packet Storm
255088 5 警告 Opera Software ASA - Opera におけるサービス運用妨害 (アプリケーションクラッシュ) の脆弱性 CWE-noinfo
情報不足 		CVE-2011-2622 2011-07-27 10:32 2011-06-28 Show GitHub Exploit DB Packet Storm
255089 7.2 危険 アップル - Apple iOS の IOMobileFrameBuffer における権限を取得される脆弱性 CWE-264
認可・権限・アクセス制御 		CVE-2011-0227 2011-07-27 10:31 2011-07-19 Show GitHub Exploit DB Packet Storm
255090 4.3 警告 Nagios Enterprises, LLC
The Icinga Project		 - Nagios および Icinga におけるクロスサイトスクリプティングの脆弱性 CWE-79
クロスサイト・スクリプティング（XSS） 		CVE-2011-2179 2011-07-27 10:25 2011-06-1 Show GitHub Exploit DB Packet Storm
NVD Vulnerability Information

Update Date:June 9, 2026, 4:16 a.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Show Affected Exploit
PoC
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225821 7.5 HIGH
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.7, 5.6.3, 5.5.2, and 4.10.5. It allows attackers to cause a denial of service (memory consumption) via an outgoing webhook or a slash command int… CWE-401
 Missing Release of Memory after Effective Lifetime 		CVE-2019-20888 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
225822 4.3 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.7.1, 5.6.4, 5.5.3, and 4.10.6. It does not honor flags API permissions when deciding whether a user can receive intra-team posts. CWE-862
 Missing Authorization 		CVE-2019-20887 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
225823 7.5 HIGH
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.8.0. The first user is sometimes inadvertently a system admin. CWE-269
 Improper Privilege Management 		CVE-2019-20886 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
225824 7.5 HIGH
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.8.0. It does not always generate a robots.txt file. CWE-862
 Missing Authorization 		CVE-2019-20885 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
225825 5.3 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.8.0. It allows attackers to partially attach a file to more than one post. NVD-CWE-noinfo
CVE-2019-20884 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
225826 4.3 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.8.0, when Town Square is set to Read-Only. Users can pin or unpin a post. NVD-CWE-noinfo
CVE-2019-20883 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
225827 5.3 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.8.0. It does not honor the domain requirement when processing a join request for an open team. CWE-276
Incorrect Default Permissions  		CVE-2019-20882 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
225828 7.3 HIGH
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.8.0. It mishandles brute-force attacks against MFA. CWE-307
mproper Restriction of Excessive Authentication Attempts 		CVE-2019-20881 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
225829 7.5 HIGH
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.8.0, 5.7.2, 5.6.5, and 4.10.7. It allows attackers to cause a denial of service (memory consumption) via OpenGraph. CWE-770
 Allocation of Resources Without Limits or Throttling 		CVE-2019-20880 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
225830 4.3 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.8.0, 5.7.2, 5.6.5, and 4.10.7. Changes to e-mail addresses do not require credential re-entry. CWE-287
Improper Authentication 		CVE-2019-20879 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm