New API is vulnerable to CSRF through user email binding

## Summary The email and WeChat account binding endpoints used GET requests for state-changing account operations. In deployments where session cookies could be sent on cross-site navigations, an attacker could trigger a logged-in user's browser to bind an attacker-controlled email address or OAuth identity. Affected endpoints included: - `GET /api/oauth/email/bind` - `GET /api/oauth/wechat/bind` ## Impact A successful attack could change account binding state. For email binding, the attacker could bind an email address they control and then attempt follow-on account recovery flows. The default session cookie configuration uses `SameSite=Strict`, which mitigates common cross-site navigation attacks in modern browsers, so the issue is rated Medium. ## Affected versions Versions before `v0.12.0-alpha.1` are affected. ## Patches This issue is fixed in `v0.12.0-alpha.1`. The fix changes email and WeChat binding routes from GET to POST and reads parameters from a JSON request body instead of query parameters. The same change set also normalizes password reset responses to avoid disclosing whether an email is registered. ## Workarounds If upgrading immediately is not possible, ensure session cookies are configured with strict SameSite behavior and block GET requests to `/api/oauth/email/bind` and `/api/oauth/wechat/bind` at the reverse proxy. ## Resources - Fixed by commit `e099117c61391abdf888fb75e382a582e550bd0e`. - Relevant code paths: `router/api-router.go` and `controller/user.go`.

Source published

7 Jul 2026 13:01:49 UTC

Source modified

21 Jul 2026 19:19:20 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Publisher rating · MODERATE