CVE-2022-23656CWE-79

Cross-site scripting vulnerability in Zulip Server

Medium · published March 2, 2022

CVSS v3.1
4.6
EPSS
1%
Percentile
47.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.6 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00584 · 47.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2022-03-02T20:25Z
EPSS history
Timeline
  • 02 MAR 20:25Z
    Cross-site scripting vulnerability in Zulip Server
    cvelistv5