CVE-2021-21332: Cross-site scripting (XSS) vulnerability in the password reset endpoint
(updated )
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.
References
- github.com/advisories/GHSA-246w-56m2-5899
- github.com/matrix-org/synapse
- github.com/matrix-org/synapse/commit/e54746bdf7d5c831eabe4dcea76a7626f1de73df
- github.com/matrix-org/synapse/pull/9200
- github.com/matrix-org/synapse/releases/tag/v1.27.0
- github.com/matrix-org/synapse/security/advisories/GHSA-246w-56m2-5899
- github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2021-133.yaml
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TNNAJOZNMVMXM6AS7RFFKB4QLUJ4IFEY
- nvd.nist.gov/vuln/detail/CVE-2021-21332
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