جزئیات آسیب‌پذیری
CVE-2026-63115
ActivityPub Undo handler can unfollow or remove reposts on behalf of other accounts
خلاصه‌ی فارسی
خلاصه‌ی فارسی برای این آسیب‌پذیری هنوز تهیه نشده است.
شرح رسمی (انگلیسی)
ActivityPub is a multi-tenant ActivityPub server for Ghost, built with Fedify. From 1.0.0 until 1.2.6, the `Undo` handler allows a remote federated server to cause the service to act on a `follow` or `repost` as though the activity came from a different account. This permits removal of an existing `follow` relationship or `repost` belonging to another account without that account's involvement. No private data is exposed and content is not modified; the affected relationships can be re-established. Services proxying to Ghost's hosted ActivityPub server have already been updated, while self-hosted services require an updated image and redeployment. This issue is fixed in version 1.2.6.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 5.3متوسط | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
محصولات آسیب‌پذیر
| فروشنده | محصول | نسخه‌ها | منبع |
|---|---|---|---|
| TryGhost | ActivityPub | >= 1.0.0, < 1.2.6 | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۴- https://github.com/TryGhost/ActivityPub/security/advisories/GHSA-mm4q-93gr-5mwc x_refsource_CONFIRM
- https://github.com/TryGhost/ActivityPub/pull/1929 x_refsource_MISC
- https://github.com/TryGhost/ActivityPub/commit/1526f540b983da97750b380868a210e6cdfb985e x_refsource_MISC
- https://github.com/TryGhost/ActivityPub/releases/tag/v1.2.6 x_refsource_MISC
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۸/۰۹
- آخرین به‌روزرسانی
- ۱۴۰۵/۰۸/۱۱
- وضعیت
- PUBLISHED
- صادرکننده (CNA)
- GitHub_M
- اولویت کلون
- به‌زودی
پیش‌بینی بهره‌برداری (EPSS)
ارزیابی SSVC (CISA)
- Automatable
- yes
- Exploitation
- none
- Technical Impact
- partial
ضعف‌ها (CWE)
- CWE-290Authentication Bypass by Spoofing
- CWE-345Insufficient Verification of Data Authenticity
- CWE-863Incorrect Authorization