Resource deletion via unchecked object identifier
Published Dec 28, 2022 · Updated Apr 10, 2025
Authorization bypass in Memos before 0.9.1 allows remote attackers to delete another user's stored resources through the web API. The resource-deletion handler trusts a caller-influenced resource identifier without verifying that the fetched resource belongs to the requester. Published assessments disagree on whether authentication is required, but the bounded consequence is deletion of another user's resources.
Summary
What happened
Authorization bypass in Memos before 0.9.1 allows remote attackers to delete another user's stored resources through the web API. The resource-deletion handler trusts a caller-influenced resource identifier without verifying that the fetched resource belongs to the requester. Published assessments disagree on whether authentication is required, but the bounded consequence is deletion of another user's resources.
The record
- CVE
- CVE-2022-4812
- Published
- Dec 28, 2022
- Updated
- Apr 10, 2025
- Vendor
- Memos
- Product
- Memos
- Classifications
- CWE-639, T1485
- Attack vector
- network
- Privileges
- Unavailable
Timeline
How it unfolded
- Dec 28, 2022CVE publishedPublication date reported by the CVE source.
- Apr 10, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <0.9.1
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Huntr resource-deletion proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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