Vulnerability in Zulip
CVE-2023-22735
Zulip is an open-source team collaboration tool. In versions of zulip prior to commit `2f6c5a8` but after commit `04cf68b` users could upload files with arbitrary `Content-Type` which would be served from the Zulip hostname with `Content-D…
EPSS: 0.003 (53.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Zulip — versions >= 04cf68b, < 2f6c5a8
Weakness classification (CWE)
References
- https://github.com/zulip/zulip/security/advisories/GHSA-wm83-3764-5wqh (x_refsource_CONFIRM)
- https://github.com/zulip/zulip/commit/04cf68b45ebb5c03247a0d6453e35ffc175d55da (x_refsource_MISC)
- https://github.com/zulip/zulip/commit/2f6c5a883e106aa82a570d3d1f243993284b70f3 (x_refsource_MISC)
- https://zulip.readthedocs.io/en/latest/production/upgrade-or-modify.html#upgrading-from-a-git-repository (x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-22735?
- CVE-2023-22735 is a medium-severity vulnerability in Zulip, classified under CWE-436. CVSS score: 4.4/10. Published 2023-02-07.
- How severe is CVE-2023-22735?
- Medium severity. CVSS v3 base score is 4.4 out of 10.