What is CVE-2022-23656?

CVE-2022-23656 is a medium-severity vulnerability in Zulip, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2022-03-02.

How severe is CVE-2022-23656?

Medium severity. CVSS v3 base score is 4.6 out of 10.

XSS in Zulip

CVE-2022-23656

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…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (51.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.

Affected products

Zulip — versions >= 2021-06-03, < 2022-03-01

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/zulip/zulip/security/advisories/GHSA-fc77-h3jc-6mfv (x_refsource_CONFIRM)
github.com/zulip/zulip/commit/e090027adcbf62737d5b1f83a9618a9500a49321 (x_refsource_MISC)

Frequently asked questions

What is CVE-2022-23656?: CVE-2022-23656 is a medium-severity vulnerability in Zulip, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2022-03-02.
How severe is CVE-2022-23656?: Medium severity. CVSS v3 base score is 4.6 out of 10.