What’s Vulnerable › Vulnerabilities

CVE-2020-9444

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-20 · updated 2026-06-17
• Weakness: CWE-1021

Description

Zulip Server before 2.1.3 allows reverse tabnabbing via the Markdown functionality.

Affected products

• zulip: through 2.1.3

References

• https://blog.zulip.org/2020/04/01/zulip-server-2-1-3-security-release/
• https://blog.zulip.org/2020/04/01/zulip-server-2-1-3-security-release/

Get alerted when CVE-2020-9444 or the next vulnerability affects your stack