Improper input validation in Matrix Sydent
CVE-2021-29432
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (59.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Matrix Sydent
- Matrix-Org Sydent — versions < 2.3.0
Weakness classification (CWE)
References
- pypi.org/project/matrix-sydent/ (Product, Third Party Advisory)
- github.com/matrix-org/sydent/releases/tag/v2.3.0 (Third Party Advisory, Release Notes)
- github.com/matrix-org/sydent/security/advisories/GHSA-mh74-4m5g-fcjx (Patch, Third Party Advisory)
- github.com/matrix-org/sydent/commit/4469d1d42b2b1612b70638224c07e19623039c42 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-29432?
- CVE-2021-29432 is a medium-severity vulnerability in Matrix Sydent, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2021-04-15.
- How severe is CVE-2021-29432?
- Medium severity. CVSS v3 base score is 5.3 out of 10.