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CVE-2022-23656

4.6 · MEDIUM

Zulip is an open source team chat app.

Published Mar 2, 2022CWE-79EPSS 0.58%

Overview

CVE-2022-23656 is a medium-severity vulnerability. It was published on March 2, 2022 and has a CVSS 3.1 base score of 4.6 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.6, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Zulip is an open source team chat app. The `main` development branch of Zulip Server from June 2021 and later is vulnerable to a cross-site scripting vulnerability on the recent topics page. An attacker could maliciously craft a full name for their account and send messages to a topic with several participants; a victim who then opens an overflow tooltip including this full name on the recent topics page could trigger execution of JavaScript code controlled by the attacker. Users running a Zulip server from the main branch should upgrade from main (2022-03-01 or later) again to deploy this fix.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/zulip/zulip/commit/e090027adcbf62737d5b1f83a9618a9500a49321GitHubgithub.com/zulip/zulip/security/advisories/GHSA-fc77-h3jc-6mfvGitHubgithub.com/zulip/zulip/commit/e090027adcbf62737d5b1f83a9618a9500a49321GitHubgithub.com/zulip/zulip/security/advisories/GHSA-fc77-h3jc-6mfv

How CyberStrike helps

Frequently asked questions

What is CVE-2022-23656?

CVE-2022-23656 is a medium-severity vulnerability. It was published on March 2, 2022 and has a CVSS 3.1 base score of 4.6 (MEDIUM).

How severe is CVE-2022-23656?

This vulnerability has a CVSS 3.1 base score of 4.6, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-23656?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-23656?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-23656 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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