Unauthorized data modification via missing CSRF defenses
Published Dec 29, 2022 · Updated Apr 9, 2025
Cross-site request forgery in Memos before 0.9.1 allows remote attackers to modify data through an authenticated user’s browser. The server accepts state-changing requests without CSRF middleware, while its session cookie lacks a SameSite restriction. Exploitation requires an authenticated user to visit attacker-controlled content, enabling requests to alter that user’s Memos data.
Summary
What happened
Cross-site request forgery in Memos before 0.9.1 allows remote attackers to modify data through an authenticated user’s browser. The server accepts state-changing requests without CSRF middleware, while its session cookie lacks a SameSite restriction. Exploitation requires an authenticated user to visit attacker-controlled content, enabling requests to alter that user’s Memos data.
The record
- CVE
- CVE-2022-4847
- Published
- Dec 29, 2022
- Updated
- Apr 9, 2025
- Vendor
- Memos
- Product
- Memos
- Classifications
- CWE-941
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 29, 2022CVE publishedPublication date reported by the CVE source.
- Apr 9, 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
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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