CVE-2020-9443
Zulip Desktop before 4.0.3 loaded untrusted content in an Electron webview with web security disabled, which can be exploited for XSS in a number of ways.
Does this matter?
Lower severity and a low EPSS score (0.64%). Track it; it rarely justifies an emergency change on its own.
Description
Zulip Desktop before 4.0.3 loaded untrusted content in an Electron webview with web security disabled, which can be exploited for XSS in a number of ways. This especially affects Zulip Desktop 2.3.82.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.64% probability · 50th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- zulipchat/zulip desktop
- Source
- cve@mitre.org
EPSS 0.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.