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CVE
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CVE-2021-29432Date: (C)2021-04-17   (M)2023-12-22


Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary emails from the Sydent email address. This could be used to construct plausible phishing emails, for example. This issue has been fixed in 4469d1d.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 5.7CVSS Score : 3.5
Exploit Score: 2.1Exploit Score: 6.8
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: MEDIUM
Privileges Required: LOWAuthentication: SINGLE
User Interaction: REQUIREDConfidentiality: NONE
Scope: UNCHANGEDIntegrity: PARTIAL
Confidentiality: NONEAvailability: NONE
Integrity: HIGH 
Availability: NONE 
  
Reference:
https://github.com/matrix-org/sydent/commit/4469d1d42b2b1612b70638224c07e19623039c42
https://github.com/matrix-org/sydent/releases/tag/v2.3.0
https://github.com/matrix-org/sydent/security/advisories/GHSA-mh74-4m5g-fcjx
https://pypi.org/project/matrix-sydent/

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