CVE-20XX-?
agent?

CVE-2021-21332

6.9 MEDIUM 1% exploit odds Fix listed

What it is

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.

At a glance

Exploitability
Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure.
Exploit odds
1.2% chance of exploitation in the next 30 days (EPSS).
Fix
A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

  1. PublishedDisclosed publicly on CVE.org and NVD
  2. Last updatedMost recent change to the record

Why it ranks here

Details

Published
Last modified
Exploit probability
1.2% · EPSS, next 30 days
Weakness
CWE-79 · Cross-site scripting
Record status
Modified

Affected

Attack profile CVSS 3.1 · 6.9

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None
Raw vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-21332.md and follow it. Check whether this project is affected by CVE-2021-21332. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record