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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":May 25, 2026, 6 p.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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255871 5.8 警告 Opera Software ASA - Opera におけるクロスサイトスクリプティングの脆弱性 CWE-16
環境設定 		CVE-2009-4071 2010-09-27 16:16 2009-11-24 Show GitHub Exploit DB Packet Storm
255872 5.8 警告 Opera Software ASA - Windows 上で稼働する Opera におけるアドレスフィールドを偽装される脆弱性 CWE-20
不適切な入力確認 		CVE-2009-3832 2010-09-27 16:16 2009-10-28 Show GitHub Exploit DB Packet Storm
255873 5 警告 Opera Software ASA - Opera におけるフィッシング攻撃の脆弱性 CWE-Other
その他 		CVE-2009-3049 2010-09-27 16:15 2009-09-1 Show GitHub Exploit DB Packet Storm
255874 4.3 警告 Opera Software ASA - Opera における意図しないファイルをアップロードさせられる脆弱性 CWE-20
不適切な入力確認 		CVE-2009-3048 2010-09-27 16:15 2009-09-1 Show GitHub Exploit DB Packet Storm
255875 4.3 警告 Opera Software ASA - Opera における URL を偽装される脆弱性 CWE-Other
その他 		CVE-2009-3047 2010-09-27 16:15 2009-09-1 Show GitHub Exploit DB Packet Storm
255876 5 警告 Opera Software ASA - Opera における証明書チェーンの有効性を回避される脆弱性 CWE-264
認可・権限・アクセス制御 		CVE-2009-3046 2010-09-27 16:15 2009-09-1 Show GitHub Exploit DB Packet Storm
255877 5 警告 Opera Software ASA - Opera における任意の SSL サーバになりすまされる脆弱性 CWE-310
暗号の問題 		CVE-2009-3045 2010-09-27 16:15 2009-09-1 Show GitHub Exploit DB Packet Storm
255878 9.3 危険 Opera Software ASA - Opera における任意のコードを実行される脆弱性 CWE-94
コード・インジェクション 		CVE-2009-3831 2010-09-27 16:14 2009-10-28 Show GitHub Exploit DB Packet Storm
255879 5 警告 Opera Software ASA - Opera におけるサービス運用妨害 (DoS) の脆弱性 CWE-399
リソース管理の問題 		CVE-2009-3269 2010-09-27 16:14 2009-09-18 Show GitHub Exploit DB Packet Storm
255880 4.3 警告 Opera Software ASA - Opera 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-2009-3266 2010-09-27 16:14 2009-09-18 Show GitHub Exploit DB Packet Storm
NVD Vulnerability Information

Update Date:May 25, 2026, 4:01 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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221731 7.5 HIGH
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.11.0. Invite IDs were improperly generated. CWE-20
 Improper Input Validation  		CVE-2019-20868 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
221732 5.3 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.11.0. An attacker can interfere with a channel's post loading via one crafted post. NVD-CWE-noinfo
CVE-2019-20867 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
221733 5.3 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.12.0. Use of a Proxy HTTP header, rather than the source address in an IP packet header, for obtaining IP address information was mishandled. CWE-444
HTTP Request Smuggling 		CVE-2019-20866 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
221734 8.8 HIGH
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.12.0, 5.11.1, 5.10.2, 5.9.2, and 4.10.10. The login page allows CSRF. CWE-352
 Origin Validation Error 		CVE-2019-20865 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
221735 7.5 HIGH
Network 		mattermost mattermost_plugins An issue was discovered in Mattermost Plugins before 5.13.0. The GitHub plugin allows an attacker to attach his Mattermost account to a different person's GitHub account. NVD-CWE-noinfo
CVE-2019-20864 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
221736 7.5 HIGH
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.13.0. Incoming webhook creation is not properly restricted. NVD-CWE-noinfo
CVE-2019-20863 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
221737 7.5 HIGH
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.13.0. Non-members may fetch a team's slash commands. NVD-CWE-noinfo
CVE-2019-20862 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
221738 8.8 HIGH
Network 		mattermost mattermost_desktop An issue was discovered in Mattermost Desktop App before 4.2.2. It allows attackers to execute arbitrary code via a crafted link. NVD-CWE-noinfo
CVE-2019-20861 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
221739 5.5 MEDIUM
Local 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.14.0, 5.13.3, 5.12.6, and 5.9.4. It allows remote attackers to cause a denial of service (application hang) via a crafted SVG document. NVD-CWE-noinfo
CVE-2019-20860 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm
221740 7.5 HIGH
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 5.15.0. Login access control can be bypassed via crafted input. NVD-CWE-noinfo
CVE-2019-20859 2024-11-21 13:39 2020-06-20 Show GitHub Exploit DB Packet Storm