CVE-2022-31134

Zulip Server public data export contains attachments that are non-public

Published Jul 12, 2022 CVSS 3.1 · 4.9 Medium EPSS < 1% KEV · Not listed
Description
Zulip is an open-source team collaboration tool. Zulip Server versions 2.1.0 above have a user interface tool, accessible only to server owners and server administrators, which provides a way to download a "public data" export. While this export is only accessible to administrators, in many configurations server administrators are not expected to have access to private messages and private streams. However, the "public data" export which administrators could generate contained the attachment contents for all attachments, even those from private messages and streams. Zulip Server version 5.4 contains a patch for this issue.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-52762 Zulip is an open-source team collaboration tool. Zulip Server versions 2.1.0 above have a user interface tool, accessible only to server owners and server administrators, which provides a way to download a "public data" export. While this export is only accessible to administrators, in many configurations server administrators are not expected to have access to private messages and private streams. However, the "public data" export which administrators could generate contained the attachment contents for all attachments, even those from private messages and streams. Zulip Server version 5.4 contains a patch for this issue.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00497}

epss

{'score': 0.00401}

Type Values Removed Values Added
Metrics epss

{'score': 0.00229}

epss

{'score': 0.00497}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Apr 23, 2025, 6:02 PM
Reserved
May 18, 2022, 12:00 AM
Status
Modified
Published
Jul 12, 2022, 9:15 PM
Modified
Jun 17, 2026, 4:44 AM