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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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255891 9.3 危険 アドビシステムズ
Opera Software ASA		 - Opera における Adobe Acrobat の JavaScript の制限を回避される脆弱性 CWE-264
認可・権限・アクセス制御 		CVE-2009-1599 2010-09-27 16:09 2009-05-11 Show GitHub Exploit DB Packet Storm
255892 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-2008-7245 2010-09-27 16:09 2009-09-18 Show GitHub Exploit DB Packet Storm
255893 9.3 危険 Opera Software ASA - Windows 上で稼働する Opera におけるヒープベースのバッファオーバーフローの脆弱性 CWE-119
バッファエラー 		CVE-2008-5178 2010-09-27 16:09 2008-11-20 Show GitHub Exploit DB Packet Storm
255894 10 危険 Opera Software ASA - Opera における脆弱性 CWE-noinfo
情報不足 		CVE-2009-0916 2010-09-27 16:08 2009-03-3 Show GitHub Exploit DB Packet Storm
255895 4.3 警告 Opera Software ASA - Windows 上で稼働する 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-2008-5428 2010-09-27 16:07 2008-12-11 Show GitHub Exploit DB Packet Storm
255896 4.3 警告 Opera Software ASA - Opera の Opera.dll 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-2008-4725 2010-09-27 16:07 2008-10-23 Show GitHub Exploit DB Packet Storm
255897 5.8 警告 Opera Software ASA - Opera における新規フィードの購読を作成される脆弱性 CWE-264
認可・権限・アクセス制御 		CVE-2008-4698 2010-09-27 16:05 2008-10-23 Show GitHub Exploit DB Packet Storm
255898 10 危険 Opera Software ASA - Windows 上で稼働する Opera における任意のコードを実行される脆弱性 CWE-noinfo
情報不足 		CVE-2008-4293 2010-09-27 16:05 2008-09-27 Show GitHub Exploit DB Packet Storm
255899 10 危険 Opera Software ASA - Opera における CRL の更新時の処理に関する脆弱性 CWE-255
CWE-noinfo
CVE-2008-4292 2010-09-27 16:04 2008-09-27 Show GitHub Exploit DB Packet Storm
255900 6.4 警告 Opera Software ASA - Opera における Web スクリプトを含むページの URL をアドレスフィールドに表示される脆弱性 CWE-20
不適切な入力確認 		CVE-2008-4200 2010-09-27 16:04 2008-09-27 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
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253371 9.1 CRITICAL
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2, when serving as an OAuth 2.0 Service Provider. There is low entropy for authorization data. CWE-331
 Insufficient Entropy 		CVE-2017-18883 2024-11-21 12:21 2020-06-20 Show GitHub Exploit DB Packet Storm
253372 6.1 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS can occur via OpenGraph data. CWE-79
Cross-site Scripting 		CVE-2017-18882 2024-11-21 12:21 2020-06-20 Show GitHub Exploit DB Packet Storm
253373 6.1 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via a goto_location response to a slash command. CWE-79
Cross-site Scripting 		CVE-2017-18881 2024-11-21 12:21 2020-06-20 Show GitHub Exploit DB Packet Storm
253374 6.1 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via the title_link field of a Slack attachment. CWE-79
Cross-site Scripting 		CVE-2017-18880 2024-11-21 12:21 2020-06-20 Show GitHub Exploit DB Packet Storm
253375 6.1 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via the author_link field of a Slack attachment. CWE-79
Cross-site Scripting 		CVE-2017-18879 2024-11-21 12:21 2020-06-20 Show GitHub Exploit DB Packet Storm
253376 4.3 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. Knowledge of a session ID allows revoking another user's session. CWE-732
 Incorrect Permission Assignment for Critical Resource 		CVE-2017-18878 2024-11-21 12:21 2020-06-20 Show GitHub Exploit DB Packet Storm
253377 6.5 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can achieve directory traversal. CWE-22
Path Traversal 		CVE-2017-18874 2024-11-21 12:21 2020-06-20 Show GitHub Exploit DB Packet Storm
253378 5.3 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to cause a denial of service (channel invisibility) via a misformatted post. CWE-20
 Improper Input Validation  		CVE-2017-18873 2024-11-21 12:21 2020-06-20 Show GitHub Exploit DB Packet Storm
253379 4.3 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 4.4.3 and 4.3.3. Attackers could reconfigure an OAuth app in some cases where Mattermost is an OAuth 2.0 service provider. CWE-732
 Incorrect Permission Assignment for Critical Resource 		CVE-2017-18872 2024-11-21 12:21 2020-06-20 Show GitHub Exploit DB Packet Storm
253380 6.1 MEDIUM
Network 		mattermost mattermost_server An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS attacks could occur against an OAuth 2.0 allow/deny page. CWE-79
Cross-site Scripting 		CVE-2017-18877 2024-11-21 12:21 2020-06-20 Show GitHub Exploit DB Packet Storm