AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2023-33186

HIGH · CVSS 8.2 EPSS 0.62% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-05-30 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.2. It affects Java. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-33186
Severity
HIGH
CVSS
8.2
EPSS
0.62%
Java

Original NVD Description

Zulip is an open-source team collaboration tool with unique topic-based threading that combines the best of email and chat to make remote work productive and delightful. The main development branch of Zulip Server from May 2, 2023 and later, including beta versions 7.0-beta1 and 7.0-beta2, is vulnerable to a cross-site scripting vulnerability in tooltips on the message feed. An attacker who can send messages could maliciously craft a topic for the message, such that a victim who hovers the tooltip for that topic in their message feed triggers execution of JavaScript code controlled by the attacker.

Related CVEs

Other vulnerabilities affecting the same vendor(s)