CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и след действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
PrivateBin is an online pastebin where the server has zero knowledge of pasted data. Prior to 2.0.5, AttachmentViewer.setAttachment in js/privatebin.js uses getAttachmentMimeType to accept attacker-controlled MIME types and uses getBlobUrl to create a same-origin blob before setting attachmentLink's href for the Download attachment link. The SVG-only sanitization branch updates only the preview blob, so text/html, image/svg, application/xhtml+xml, and text/xml attachments can remain active in the download blob. On an instance with fileupload = true and a weakened, stripped, or absent Content Security Policy, an anonymous attacker can create such an attachment, and a victim who opens the link in a new tab causes inline JavaScript to execute in the PrivateBin origin. The script can read origin-scoped local storage and issue same-origin requests, including requests to applications co-hosted on the same domain. This issue is fixed in version 2.0.5.
Засегнати продукти
- PrivateBin PrivateBin: < 2.0.5
Вид слабост
История
- 28 август 2026 Публикувано
Други уязвимости в PrivateBin PrivateBin
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-55696
- https://nvd.nist.gov/vuln/detail/CVE-2026-55696
- https://github.com/PrivateBin/PrivateBin/security/advisories/GHSA-f2xf-7x3g-4272
- https://github.com/PrivateBin/PrivateBin/commit/7f1f40853efe0eb12db9cc4a30ea8524ac00f423
- https://github.com/PrivateBin/PrivateBin/releases/tag/2.0.5