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I. Basic Information for CVE-2023-42453
Vulnerability Information

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Vulnerability Title
Improper validation of receipts allows forged read receipts in matrix synapse
Source: NVD (National Vulnerability Database)
Vulnerability Description
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Users were able to forge read receipts for any event (if they knew the room ID and event ID). Note that the users were not able to view the events, but simply mark it as read. This could be confusing as clients will show the event as read by the user, even if they are not in the room. This issue has been patched in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
synapse 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
synapse是一个应用程序。用于开放式联合即时消息和VoIP Synapse存在授权问题漏洞,该漏洞源于允许攻击者伪造任何事件的已读回执。受影响的产品和版本:Synapse 0.34.0至1.93.0之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
matrix-orgsynapse >= 0.34.0, < 1.93.0 -
II. Public POCs for CVE-2023-42453
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III. Intelligence Information for CVE-2023-42453
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IV. Related Vulnerabilities
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