https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2020-10858.htmlhttps://patchthecve.com/cve/CVE-2020-10858.htmlWed, 17 Jun 2026 02:48:34 +0000MEDIUM 5.3: Zulip Desktop before 5.0.0 allows attackers to perform recording via the webcam and microphone due to a missing permission request handler.https://patchthecve.com/cve/CVE-2020-10857.htmlhttps://patchthecve.com/cve/CVE-2020-10857.htmlWed, 17 Jun 2026 02:48:34 +0000CRITICAL 9.8: Zulip Desktop before 5.0.0 improperly uses shell.openExternal and shell.openItem with untrusted content, leading to remote code execution.https://patchthecve.com/cve/CVE-2020-24582.htmlhttps://patchthecve.com/cve/CVE-2020-24582.htmlWed, 17 Jun 2026 03:05:48 +0000MEDIUM 6.1: Zulip Desktop before 5.4.3 allows XSS because string escaping is mishandled during composition of the HTML for the user interface.https://patchthecve.com/cve/CVE-2020-12637.htmlhttps://patchthecve.com/cve/CVE-2020-12637.htmlWed, 17 Jun 2026 02:52:02 +0000CRITICAL 9.8: Zulip Desktop before 5.2.0 has Missing SSL Certificate Validation because all validation was inadvertently disabled during an attempt to recognize the ignoreCerts option.https://patchthecve.com/cve/CVE-2020-9443.htmlhttps://patchthecve.com/cve/CVE-2020-9443.htmlWed, 17 Jun 2026 03:27:57 +0000MEDIUM 6.1: 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.