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You can search for vulnerabilities managed by JVN (Japan Vulnerability Note) and NVD (National Vulnerability Database).
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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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252271 4.3 警告 Yaws - Yaws の wiki アプリケーション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-2011-5025 2012-01-5 10:21 2011-12-29 Show GitHub Exploit DB Packet Storm
252272 4.3 警告 GNU Project - Mailman 用の Mailman/htdig integration patch の mmsearch/design 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-2011-5024 2012-01-5 10:21 2011-12-29 Show GitHub Exploit DB Packet Storm
252273 4.3 警告 Pligg - Pligg CMS の search.php 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-2011-5023 2012-01-5 10:17 2011-12-29 Show GitHub Exploit DB Packet Storm
252274 7.5 危険 Pligg - Pligg CMS の search.php における SQL インジェクションの脆弱性 CWE-89
SQLインジェクション 		CVE-2011-5022 2012-01-5 10:16 2011-12-29 Show GitHub Exploit DB Packet Storm
252275 4.3 警告 Winn GuestBook - Winn GuestBook 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-2011-5026 2012-01-5 10:16 2011-12-27 Show GitHub Exploit DB Packet Storm
252276 7.5 危険 PHPIDS - PHPIDS におけるルールセット回避の脆弱性 CWE-94
コード・インジェクション 		CVE-2011-5021 2012-01-5 10:15 2011-12-29 Show GitHub Exploit DB Packet Storm
252277 5 警告 GoAhead Software, Inc. - GoAhead WebServer におけるサービス運用妨害 (デーモン停止) の脆弱性 CWE-399
リソース管理の問題 		CVE-2009-5111 2012-01-5 10:13 2011-12-27 Show GitHub Exploit DB Packet Storm
252278 5 警告 DHTTPD - dhttpd におけるサービス運用妨害 (デーモン停止) の脆弱性 CWE-399
リソース管理の問題 		CVE-2009-5110 2012-01-5 10:13 2011-12-27 Show GitHub Exploit DB Packet Storm
252279 5 警告 Apache Software Foundation - Apache Tomcat におけるサービス運用妨害 (CPU 資源の消費) の脆弱性 CWE-399
リソース管理の問題 		CVE-2011-4084 2012-01-4 16:50 2011-12-30 Show GitHub Exploit DB Packet Storm
252280 5 警告 Google - Google V8 におけるサービス運用妨害 (CPU 資源の消費) の脆弱性 CWE-20
不適切な入力確認 		CVE-2011-5037 2012-01-4 16:48 2011-12-30 Show GitHub Exploit DB Packet Storm
NVD Vulnerability Information

Update Date:May 26, 2026, 4:05 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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221711 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
221712 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
221713 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
221714 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
221715 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
221716 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
221717 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
221718 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
221719 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
221720 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