Vulnerability Monitor

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CVE-2022-31134

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.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 4.9, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 1 product from zulip organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2022-07-12T21:15:09.910

Last Modified

2024-11-21T07:03:58.150

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

8.0

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-200
Type: Primary
CWE-434

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	zulip	zulip_server	< 5.4	Yes

References

https://blog.zulip.com/2022/07/12/zulip-cloud-data-exports Vendor Advisory ([email protected])
https://blog.zulip.com/2022/07/12/zulip-server-5-4-security-release Release Notes, Vendor Advisory ([email protected])
https://github.com/zulip/zulip/security/advisories/GHSA-58pm-88xp-7x9m Release Notes, Third Party Advisory ([email protected])
https://blog.zulip.com/2022/07/12/zulip-cloud-data-exports Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://blog.zulip.com/2022/07/12/zulip-server-5-4-security-release Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/zulip/zulip/security/advisories/GHSA-58pm-88xp-7x9m Release Notes, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For zulip's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.