CVE-2026-107828
Jivejdon through 5.0 Predictable Passwords via Sina Weibo OAuth Login
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 8, 2026
- Updated
- Oct 9, 2026
- Reserved
- Oct 8, 2026
Description
Jivejdon through 5.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to access Weibo-created accounts by deriving predictable credentials from public Weibo user IDs. OAuthAccountServiceImp.transferSina() sets the password to the first four digits of the Weibo ID, letting attackers log in through normal form login to read or post as victims.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-1391 Use of Weak Credentials
Affected Products
| Product | Versions |
|---|---|
jivejdonbanq |
|
References
- GitHub Issue #28issue-tracking
- https://github.com/banq/jivejdonproduct
- https://github.com/banq/jivejdon/blob/ee67a65e65228644a71c8317d7e34deea50f95ef/src/main/java/com/jdon/jivejdon/api/impl/account/OAuthAccountServiceImp.java#L192-L213technical-description
- https://github.com/banq/jivejdon/blob/ee67a65e65228644a71c8317d7e34deea50f95ef/src/main/java/com/jdon/jivejdon/presentation/action/account/oauth/SinaUserCallBackAction.java#L76-L80technical-description
- VulnCheck Advisory: Jivejdon through 5.0 Predictable Passwords via Sina Weibo OAuth Loginthird-party-advisory
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