CVE-2021-29432
MEDIUMmatrix-sydent < 2.3.0 - Arbitrary Email Spoofing via Identity Server
Title source: llmDescription
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.
References (4)
Core 4
Core References
Product, Third Party Advisory x_refsource_misc
https://pypi.org/project/matrix-sydent/
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/matrix-org/sydent/releases/tag/v2.3.0
Patch, Third Party Advisory x_refsource_confirm
https://github.com/matrix-org/sydent/security/advisories/GHSA-mh74-4m5g-fcjx
Patch, Third Party Advisory x_refsource_misc
https://github.com/matrix-org/sydent/commit/4469d1d42b2b1612b70638224c07e19623039c42
Scores
CVSS v3
5.3
EPSS
0.0093
EPSS Percentile
56.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Details
CWE
CWE-20
Status
published
Products (2)
matrix/sydent
< 2.3.0
pypi/matrix-sydent
0 - 2.3.0PyPI
Published
Apr 15, 2021
Tracked Since
Feb 18, 2026