最初の3歩 1. 公式サイトにアクセス2. アカウントを登録する3. SNSアカウントを連携する
オープンソース版は自分でサーバーに導入する必要があり、技術的な知識が求められます。
やめるときは導入した担当者に依頼
ライセンスの説明は要約です。法的助言ではありません。スターとは、GitHub の「いいね」に近い評価の数です。
| 比較対象 | postiz-app との違い |
|---|---|
| Buffer | Postizは無料・セルフホスト可能。BufferはクラウドSaaSで月額課金あり |
| Hootsuite | Hootsuiteは大企業向け高機能。PostizはOSSで中小チーム向け |
安全性の表示は推定で、監査ではありません。ソフトは公開されている検査結果と脆弱性の報告、更新の止まり具合から判断しています。スキルは配布元の説明文からの推定で、配布物の中身（SKILL.md や同梱のプログラム）まではまだ検査できていません。「重大な問題は見つからず」は、問題が無いことの証明ではありません。軽い指摘が付いていることもあります。小さなプロジェクトや新しいスキルは低めに出ます。
| CVE ID | 重要度 | 状態 | 概要 |
|---|---|---|---|
| CVE-2026-19127 | Medium | published | Insufficient verification of lifetime-deal redemption codes allows forgery of permanent paid subscriptions |
| 番号なし | Critical | published | Unauthenticated arbitrary file read via /uploads path traversal (URL-encoded separators) leading to instance takeover |
| CVE-2026-48799 | High | published | Unauthenticated arbitrary lifetime PRO grant via Nowpayments webhook |
| CVE-2026-48783 | Medium | published | Unauthenticated billing-enforcement bypass via /public/modify-subscription |
| CVE-2026-48781 | Critical | published | SUPERADMIN takeover via Skool-provider JWT forgery |
| CVE-2026-42298 | Critical | published | Arbitrary Code Execution and Token Exfiltration in pr-docker-build.yml via untrusted Dockerfile.dev |
| CVE-2026-42556 | High | published | Postiz stored XSS in public preview page |
| CVE-2026-42346 | Medium | published | TOCTOU DNS rebinding bypasses all SSRF URL validation paths |
| CVE-2026-40487 | Critical | published | Unrestricted File Upload via MIME Type Spoofing Leads to Stored XSS |
| CVE-2026-40168 | High | published | Server-Side Request Forgery via Redirect Bypass in /api/public/stream |
| CVE-2026-34590 | Medium | published | SSRF via Webhook Creation Endpoint Missing URL Safety Validation |
| CVE-2026-34576 | Medium | published | SSRF in upload-from-url endpoint allows fetching internal resources and cloud metadata |
| CVE-2026-34577 | High | published | Unauthenticated Full-Read SSRF via /public/stream Endpoint with Trivially Bypassable Extension Check |
| 番号なし | Medium | published | Password hash leaked in JWT token payload in Postiz |
| CVE-2024-34351 | High | published | High-Severity SSRF in Postiz App |
| 番号なし | High | published | Multiple SSRF Vectors - Webhooks, RSS Feed, URL Loader (CWE-918) |
| CVE-2025-53641 | High | published | Header mutation in middleware facilitates SSRF |
| 公開された日 | 2023/07/08 |
| 最後に手が入った日 | 2026/10/15 |
| 当サイトが見つけた日 | 2026/02/24 |
| 日付 | スター数 | フォーク数 |
|---|---|---|
| 2026-02-24 | 26,764 | 4,628 |
| 2026-02-24 | 26,777 | 4,631 |
| 2026-02-24 | 26,777 | 4,631 |
| 2026-02-25 | 26,785 | 4,633 |
| 2026-02-25 | 26,785 | 4,633 |
| 2026-02-25 | 26,786 | 4,633 |
| 2026-02-25 | 26,798 | 4,644 |
| 2026-02-25 | 26,798 | 4,645 |
| 2026-02-25 | 26,799 | 4,645 |
| 2026-02-26 | 26,803 | 4,647 |
| 2026-02-26 | 26,803 | 4,647 |
| 2026-02-27 | 26,826 | 4,653 |
| 2026-02-28 | 26,860 | 4,675 |
| 2026-02-28 | 26,876 | 4,682 |
| 2026-03-01 | 26,884 | 4,689 |
| 2026-03-02 | 26,894 | 4,701 |
| 2026-03-03 | 26,924 | 4,712 |
| 2026-03-04 | 26,951 | 4,720 |
| 2026-03-05 | 26,974 | 4,729 |
| 2026-03-06 | 27,006 | 4,734 |
| 2026-03-07 | 27,038 | 4,748 |
| 2026-03-08 | 27,072 | 4,756 |
| 2026-03-09 | 27,106 | 4,763 |
| 2026-03-10 | 27,147 | 4,771 |
| 2026-03-11 | 27,178 | 4,783 |
| 2026-03-12 | 27,203 | 4,793 |
| 2026-03-13 | 27,236 | 4,799 |
| 2026-03-14 | 27,262 | 4,806 |
| 2026-03-15 | 27,281 | 4,809 |
| 2026-03-16 | 27,302 | 4,814 |
| 2026-03-17 | 27,329 | 4,821 |
| 2026-03-18 | 27,379 | 4,826 |
| 2026-03-19 | 27,428 | 4,842 |
| 2026-03-20 | 27,458 | 4,851 |
| 2026-03-21 | 27,482 | 4,855 |
| 2026-03-23 | 27,531 | 4,863 |
| 2026-03-24 | 27,552 | 4,871 |
| 2026-03-25 | 27,584 | 4,879 |
| 2026-03-26 | 27,606 | 4,883 |
| 2026-03-27 | 27,624 | 4,890 |
| 2026-03-28 | 27,634 | 4,893 |
| 2026-03-29 | 27,653 | 4,895 |
| 2026-03-30 | 27,674 | 4,898 |
| 2026-03-31 | 27,704 | 4,907 |
| 2026-04-01 | 27,734 | 4,916 |
| 2026-04-02 | 27,774 | 4,919 |
| 2026-04-03 | 27,806 | 4,927 |
| 2026-04-04 | 27,832 | 4,935 |
| 2026-04-05 | 27,862 | 4,948 |
| 2026-04-06 | 27,888 | 4,960 |
| 2026-04-07 | 27,904 | 4,969 |
| 2026-04-08 | 27,923 | 4,979 |
| 2026-04-09 | 27,939 | 4,983 |
| 2026-04-10 | 27,961 | 4,985 |
| 2026-04-11 | 27,991 | 4,989 |
| 2026-04-12 | 28,005 | 4,990 |
| 2026-04-13 | 28,031 | 4,995 |
| 2026-04-14 | 28,054 | 5,005 |
| 2026-04-15 | 28,454 | 5,070 |
| 2026-04-16 | 28,696 | 5,112 |
| 2026-04-16 | 28,708 | 5,115 |
| 2026-04-17 | 28,820 | 5,141 |
| 2026-04-18 | 28,906 | 5,158 |
| 2026-04-19 | 28,987 | 5,183 |
| 2026-04-20 | 29,035 | 5,198 |
| 2026-04-21 | 29,096 | 5,216 |
| 2026-04-22 | 29,225 | 5,253 |
| 2026-04-23 | 29,298 | 5,263 |
| 2026-04-24 | 29,338 | 5,278 |
| 2026-04-25 | 29,368 | 5,289 |
| 2026-04-26 | 29,461 | 5,310 |
| 2026-04-27 | 29,584 | 5,329 |
| 2026-04-28 | 29,651 | 5,357 |
| 2026-04-29 | 29,728 | 5,377 |
| 2026-04-30 | 29,778 | 5,384 |
| 2026-05-01 | 29,830 | 5,399 |
| 2026-05-02 | 29,867 | 5,417 |
| 2026-05-03 | 29,895 | 5,433 |
| 2026-05-04 | 29,929 | 5,436 |
| 2026-05-05 | 29,963 | 5,442 |
| 2026-05-06 | 30,000 | 5,450 |
| 2026-05-07 | 30,039 | 5,461 |
| 2026-05-08 | 30,081 | 5,468 |
| 2026-05-09 | 30,143 | 5,483 |
| 2026-05-10 | 30,190 | 5,480 |
| 2026-05-11 | 30,232 | 5,493 |
| 2026-05-12 | 30,270 | 5,502 |
| 2026-05-13 | 30,309 | 5,509 |
| 2026-05-14 | 30,340 | 5,521 |
| 2026-05-15 | 30,370 | 5,529 |
| 2026-05-16 | 30,406 | 5,536 |
| 2026-05-17 | 30,433 | 5,550 |
| 2026-05-18 | 30,446 | 5,556 |
| 2026-05-19 | 30,478 | 5,569 |
| 2026-05-20 | 30,514 | 5,581 |
| 2026-05-21 | 30,549 | 5,588 |
| 2026-05-22 | 30,573 | 5,597 |
| 2026-05-23 | 30,604 | 5,613 |
| 2026-05-24 | 30,671 | 5,632 |
| 2026-05-25 | 30,774 | 5,645 |
| 2026-05-26 | 30,819 | 5,659 |
| 2026-05-27 | 30,867 | 5,673 |
| 2026-05-28 | 30,980 | 5,684 |
| 2026-05-29 | 31,124 | 5,713 |
| 2026-05-30 | 31,198 | 5,731 |
| 2026-05-31 | 31,247 | 5,739 |
| 2026-06-01 | 31,301 | 5,757 |
| 2026-06-02 | 31,352 | 5,769 |
| 2026-06-03 | 31,396 | 5,786 |
| 2026-06-04 | 31,437 | 5,796 |
| 2026-06-05 | 31,471 | 5,813 |
| 2026-06-06 | 31,507 | 5,820 |
| 2026-06-07 | 31,542 | 5,825 |
| 2026-06-08 | 31,570 | 5,831 |
| 2026-06-09 | 31,611 | 5,852 |
| 2026-06-10 | 31,650 | 5,853 |
| 2026-06-11 | 31,712 | 5,857 |
| 2026-06-12 | 31,780 | 5,867 |
| 2026-06-13 | 31,838 | 5,877 |
| 2026-06-14 | 31,880 | 5,886 |
| 2026-06-15 | 31,937 | 5,894 |
| 2026-06-16 | 31,993 | 5,903 |
| 2026-06-17 | 32,022 | 5,912 |
| 2026-06-18 | 32,073 | 5,924 |
| 2026-06-19 | 32,122 | 5,935 |
| 2026-06-20 | 32,149 | 5,941 |
| 2026-06-21 | 32,179 | 5,952 |
| 2026-06-22 | 32,218 | 5,964 |
| 2026-06-23 | 32,255 | 5,978 |
| 2026-06-24 | 32,294 | 5,995 |
| 2026-06-25 | 32,328 | 6,009 |
| 2026-06-26 | 32,357 | 6,020 |
| 2026-06-27 | 32,389 | 6,028 |
| 2026-06-28 | 32,419 | 6,031 |
| 2026-06-29 | 32,452 | 6,043 |
| 2026-06-30 | 32,491 | 6,052 |
| 2026-07-01 | 32,522 | 6,057 |
| 2026-07-02 | 32,558 | 6,062 |
| 2026-07-03 | 32,602 | 6,067 |
| 2026-07-03 | 32,602 | 6,068 |
| 2026-07-04 | 32,662 | 6,085 |
| 2026-07-05 | 32,706 | 6,099 |
| 2026-07-06 | 32,746 | 6,112 |
| 2026-07-07 | 32,785 | 6,119 |
| 2026-07-08 | 32,818 | 6,134 |
| 2026-07-09 | 32,851 | 6,138 |
| 2026-07-10 | 32,891 | 6,140 |
| 2026-07-11 | 32,932 | 6,146 |
| 2026-07-12 | 32,985 | 6,156 |
| 2026-07-13 | 33,142 | 6,183 |
| 2026-07-14 | 33,234 | 6,198 |
| 2026-07-15 | 33,288 | 6,205 |
| 2026-07-16 | 33,341 | 6,209 |
| 2026-07-17 | 33,399 | 6,225 |
| 2026-07-18 | 33,442 | 6,235 |
| 2026-07-19 | 33,485 | 6,243 |
| 2026-07-20 | 33,534 | 6,255 |
| 2026-07-21 | 33,579 | 6,265 |
| 2026-07-22 | 33,635 | 6,277 |
| 2026-07-23 | 33,660 | 6,289 |
| 2026-07-24 | 33,710 | 6,303 |
| 2026-07-25 | 33,740 | 6,306 |
| 2026-07-26 | 33,772 | 6,310 |
| 2026-07-27 | 33,801 | 6,320 |
| 2026-07-28 | 33,843 | 6,322 |
| 2026-07-29 | 33,890 | 6,329 |
| 2026-07-30 | 33,921 | 6,336 |
| 2026-07-30 | 33,931 | 6,339 |
| 2026-07-31 | 33,985 | 6,352 |
| 2026-08-01 | 34,051 | 6,358 |
| 2026-08-02 | 34,099 | 6,377 |
| 2026-08-03 | 34,172 | 6,394 |
| 2026-08-04 | 34,230 | 6,411 |
| 2026-08-05 | 34,270 | 6,424 |
| 2026-08-06 | 34,308 | 6,433 |
| 2026-08-07 | 34,351 | 6,443 |
| 2026-08-08 | 34,391 | 6,456 |
| 2026-08-09 | 34,416 | 6,468 |
| 2026-08-10 | 34,450 | 6,476 |
| 2026-08-11 | 34,478 | 6,485 |
| 2026-08-12 | 34,534 | 6,503 |
| 2026-08-13 | 34,598 | 6,505 |
| 2026-08-14 | 34,640 | 6,515 |
| 2026-08-15 | 34,682 | 6,521 |
| 2026-08-16 | 34,708 | 6,531 |
| 2026-08-17 | 34,748 | 6,538 |
| 2026-08-18 | 34,786 | 6,555 |
| 2026-08-19 | 34,835 | 6,565 |
| 2026-08-20 | 34,880 | 6,583 |
| 2026-08-21 | 34,924 | 6,597 |
| 2026-08-22 | 34,957 | 6,605 |
| 2026-08-23 | 34,994 | 6,615 |
| 2026-08-24 | 35,041 | 6,627 |
| 2026-08-25 | 35,092 | 6,642 |
| 2026-08-26 | 35,127 | 6,654 |
| 2026-08-27 | 35,166 | 6,661 |
| 2026-08-28 | 35,208 | 6,667 |
| 2026-08-29 | 35,239 | 6,676 |
| 2026-08-30 | 35,259 | 6,684 |
| 2026-08-31 | 35,287 | 6,695 |
| 2026-09-01 | 35,323 | 6,710 |
| 2026-09-02 | 35,362 | 6,722 |
| 2026-09-03 | 35,401 | 6,731 |
| 2026-09-04 | 35,438 | 6,738 |
| 2026-09-05 | 35,460 | 6,749 |
| 2026-09-06 | 35,483 | 6,764 |
| 2026-09-07 | 35,528 | 6,776 |
| 2026-09-08 | 35,573 | 6,787 |
| 2026-09-09 | 35,619 | 6,798 |
| 2026-09-10 | 35,649 | 6,813 |
| 2026-09-11 | 35,691 | 6,821 |
| 2026-09-12 | 35,719 | 6,835 |
| 2026-09-13 | 35,741 | 6,845 |
| 2026-09-14 | 35,758 | 6,854 |
| 2026-09-15 | 35,812 | 6,864 |
| 2026-09-16 | 35,904 | 6,881 |
| 2026-09-17 | 35,973 | 6,895 |
| 2026-09-18 | 36,019 | 6,900 |
| 2026-09-19 | 36,051 | 6,908 |
| 2026-09-20 | 36,071 | 6,916 |
| 2026-09-21 | 36,108 | 6,923 |
| 2026-09-22 | 36,162 | 6,934 |
| 2026-09-23 | 36,211 | 6,948 |
| 2026-09-24 | 36,251 | 6,964 |
| 2026-09-25 | 36,294 | 6,978 |
| 2026-09-26 | 36,325 | 6,980 |
| 2026-09-27 | 36,360 | 6,985 |
| 2026-09-28 | 36,415 | 7,001 |
| 2026-09-29 | 36,451 | 7,015 |
| 2026-09-30 | 36,500 | 7,029 |
| 2026-10-01 | 36,549 | 7,045 |
| 2026-10-02 | 36,601 | 7,052 |
| 2026-10-03 | 36,637 | 7,057 |
| 2026-10-04 | 36,660 | 7,067 |
| 2026-10-05 | 36,696 | 7,076 |
| 2026-10-06 | 36,724 | 7,089 |
| 2026-10-07 | 36,781 | 7,110 |
| 2026-10-08 | 36,862 | 7,132 |
| 2026-10-09 | 36,905 | 7,146 |
| 2026-10-10 | 36,948 | 7,160 |
| 2026-10-11 | 36,999 | 7,170 |
| 2026-10-12 | 37,044 | 7,180 |
| 2026-10-13 | 37,096 | 7,191 |
| 2026-10-14 | 37,151 | 7,210 |
| 2026-10-15 | 37,196 | 7,223 |
| 2026-10-16 | 37,245 | 7,236 |