Detections
Analytics
SCA: security update for matrix-synapse (GHSA-246w-56m2-5899)
medium Tenable Cloud Security Plugin ID 408663
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- 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. (CVE-2021-21332)
See Also
Plugin Details
Severity: Medium
ID: 408663
Version: Revision 1.6
Type: Local
Family: SCA Checks
Published: 1/23/2025
Updated: 7/2/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 3.9
Percentile: 52.23
Vendor
Vendor Severity: Medium
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.2
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2021-21332
CVSS v3
Risk Factor: High
Base Score: 8.2
Temporal Score: 7.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 5.1
Threat Score: 1.2
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 3/26/2021
Vulnerability Publication Date: 3/26/2021
Reference Information
CVE: CVE-2021-21332
cwe: CWE-79