9.1
CVSS 4.0
Няма данни
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Няма потвърждение
Атакува се
Няма данни
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
V2Board 1.6.1 through 1.7.4 and Xboard through 0.1.9 expose authentication tokens in HTTP response bodies of the loginWithMailLink endpoint when the login_with_mail_link_enable feature is active. Unauthenticated attackers can POST to the loginWithMailLink endpoint with a known email address to receive the full authentication URL in the response, then exchange the token at the token2Login endpoint to obtain a valid bearer token with complete account access including admin privileges.
Засегнати продукти
- v2board v2board: 1.6.1 до 1.7.4; bdb10bed32c5f37df2f0872c3cb354e9b7a293bd до 0ca47622a50116d0ddd7ffb316b157afb57d25e8
- cedar2025 Xboard: до 0.1.9; 121511523f04882ec0c7447acd9b8ebcb8a47957
Вид слабост
История
- 9 април 2026 Публикувано
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-39912
- https://nvd.nist.gov/vuln/detail/CVE-2026-39912
- https://chocapikk.com/posts/2026/xboard-v2board-account-takeover/
- https://github.com/v2board/v2board/pull/981
- https://github.com/cedar2025/Xboard/pull/873
- https://github.com/v2board/v2board/blob/0ca47622a50116d0ddd7ffb316b157afb57d25e8/app/Http/Controllers/Passport/AuthController.php#L71
- https://github.com/cedar2025/Xboard/blob/1fe6531924cc1ec662a88b9ef725afcf78d660bc/app/Services/Auth/MailLinkService.php#L49
- https://github.com/cedar2025/Xboard/blob/1fe6531924cc1ec662a88b9ef725afcf78d660bc/app/Http/Controllers/V1/Passport/AuthController.php#L51
- https://github.com/cedar2025/Xboard/commit/121511523f04882ec0c7447acd9b8ebcb8a47957
- https://www.vulncheck.com/advisories/v2board-xboard-authentication-token-exposure-via-loginwithmaillink