Session hijacking via insecure session cookie
Published Dec 23, 2022 · Updated Apr 9, 2025
Sensitive-cookie exposure in Memos before 0.9.0 allows remote authenticated users to hijack sessions through cleartext cookie transmission. The setUserSession function creates the memos_session cookie with HttpOnly and a 30-day lifetime but omits Secure, allowing browsers to attach it to HTTP requests. Exposure requires an HTTP path or downgrade from HTTPS and interception of a victim's transmitted cookie; the reported consequence is session access, not data modification or service interruption.
Summary
What happened
Sensitive-cookie exposure in Memos before 0.9.0 allows remote authenticated users to hijack sessions through cleartext cookie transmission. The setUserSession function creates the memos_session cookie with HttpOnly and a 30-day lifetime but omits Secure, allowing browsers to attach it to HTTP requests. Exposure requires an HTTP path or downgrade from HTTPS and interception of a victim's transmitted cookie; the reported consequence is session access, not data modification or service interruption.
The record
- CVE
- CVE-2022-4683
- Published
- Dec 23, 2022
- Updated
- Apr 9, 2025
- Vendor
- Memos
- Product
- Memos
- Classifications
- CWE-614, CAPEC-102, T1539
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 23, 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 <0.9.0
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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