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Tue, 16 Jun 2026 14:00:00 +0000
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Discuz
Discuz discuzx |
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Discuz
Discuz discuzx |
Tue, 16 Jun 2026 12:30:00 +0000
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Mon, 15 Jun 2026 20:30:00 +0000
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ssvc
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Mon, 15 Jun 2026 19:30:00 +0000
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| Description | Discuz! X5.0 releases 20260320 through 20260501 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to gain unauthorized access to database backup and restore functionality by exploiting a shared cryptographic key between UCenter integration and the database backup API exposed by dbbak.php. Attackers can inject a crafted payload through the username parameter during login to abuse the encryption oracle in logging_ctl::logging_more(), obtain a legitimately signed token, and use it to bypass authorization for database export and import operations, with the additional ability to trigger a race condition to impersonate arbitrary users. | |
| Title | Discuz! X5.0 Authentication Bypass via dbbak.php Encryption Oracle | |
| Weaknesses | CWE-323 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-06-16T09:48:23.903Z
Reserved: 2026-06-02T16:30:15.232Z
Link: CVE-2026-49952
Updated: 2026-06-16T09:48:23.903Z
Status : Deferred
Published: 2026-06-15T20:16:29.103
Modified: 2026-06-16T12:16:26.373
Link: CVE-2026-49952
No data.
OpenCVE Enrichment
Updated: 2026-06-18T07:30:05Z