Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Zulip | Zulip Server | >= 2021-06-03, < 2022-03-01 |
Related Weaknesses (CWE)
References
- https://github.com/zulip/zulip/commit/e090027adcbf62737d5b1f83a9618a9500a49321PatchThird Party Advisory
- https://github.com/zulip/zulip/security/advisories/GHSA-fc77-h3jc-6mfvThird Party Advisory
- https://github.com/zulip/zulip/commit/e090027adcbf62737d5b1f83a9618a9500a49321PatchThird Party Advisory
- https://github.com/zulip/zulip/security/advisories/GHSA-fc77-h3jc-6mfvThird Party Advisory
FAQ
What is CVE-2022-23656?
CVE-2022-23656 is a vulnerability with a CVSS score of 4.6 (MEDIUM). 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 attack...
How severe is CVE-2022-23656?
CVE-2022-23656 has been rated MEDIUM with a CVSS base score of 4.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-23656?
Check the references section above for vendor advisories and patch information. Affected products include: Zulip Zulip Server.