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TI-2020-15062 Aliases CVE-2020-24582

Zulip Desktop before 5.4.3 allows XSS because string escaping is mishandled during…

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

Zulip Desktop before 5.4.3 allows XSS because string escaping is mishandled during composition of the HTML for the user interface.

Why it matters now

EPSS 0.00685 52nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:zulipchat:zulip_desktop:*:*:*:*:*:*:*:*before 5.4.3VulnerableZulipchat
  • cpe:2.3:a:zulipchat:zulip_desktop:*:*:*:*:*:*:*:* Versions before 5.4.3 Vulnerable ·Zulipchat

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-24582

References

Advisory 1

  • TI-2020-10047 Zulip Desktop before 5.2.0 has Missing SSL Certificate Validation because all validation… CVSS 3.1CRITICAL 9.8
  • TI-2020-07555 Zulip Desktop before 4.0.3 loaded untrusted content in an Electron webview with web… CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences