Bug 1944135 (CVE-2021-21332) - CVE-2021-21332 matrix-synapse: password reset endpoint is vulnerable to XSS
Summary: CVE-2021-21332 matrix-synapse: password reset endpoint is vulnerable to XSS
Alias: CVE-2021-21332
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1944136
TreeView+ depends on / blocked
Reported: 2021-03-29 11:36 UTC by Michael Kaplan
Modified: 2021-03-29 17:35 UTC (History)
2 users (show)

Fixed In Version: matrix-synapse 1.27.0
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Clone Of:
Last Closed: 2021-03-29 17:35:09 UTC

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Description Michael Kaplan 2021-03-29 11:36:42 UTC
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.

Comment 2 Michael Kaplan 2021-03-29 11:37:04 UTC
Created matrix-synapse tracking bugs for this issue:

Affects: fedora-all [bug 1944136]

Comment 3 Product Security DevOps Team 2021-03-29 17:35:09 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.

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