VDB
CVE-2021-21332
CVE-2021-21332
PUBLISHED
Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.27.0, the password reset endpoint served via Synapse was vulnerable to cross-site scripting (XSS) attacks. The impact depends on the configuration of the domain that Synapse is deployed on, but may allow access to cookies and other browser data, CSRF vulnerabilities, and access to other resources served on the same domain or parent domains. This is fixed in version 1.27.0.
EPSS 0.50% · 66.6th percentile
Risk Scores
EPSS Score
0.50%
66.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:18.04:LTS | matrix-synapse | 0, 0.24.0+dfsg-1, 0.24.0+dfsg-1ubuntu0.1~esm1 |
| Ubuntu:Pro:20.04:LTS | matrix-synapse | 1.6.0-1, 1.6.1-1, 1.7.0-2 |
Exploit Intelligence
- https://github.com/matrix-org/synapse/security/advisories/GHSA-246w-56m2-5899 (circl)
- https://github.com/matrix-org/synapse/releases/tag/v1.27.0 (circl)
- https://github.com/matrix-org/synapse/pull/9200 (circl)
- https://github.com/matrix-org/synapse/commit/e54746bdf7d5c831eabe4dcea76a7626f1de73df (circl)
- FEDORA-2021-a627cfd31e (circl)
Timeline
- Mar 26, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-21332 third-party-advisory
- https://github.com/matrix-org/synapse/releases/tag/v1.27.0 third-party-advisory
- https://github.com/matrix-org/synapse/security/advisories/GHSA-246w-56m2-5899 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-21332 third-party-advisory