Vulnerability Details : CVE-2022-36048
Zulip is an open-source team collaboration tool with topic-based threading that combines email and chat. When displaying messages with embedded remote images, Zulip normally loads the image preview via a go-camo proxy server. However, an attacker who can send messages could include a crafted URL that tricks the server into embedding a remote image reference directly. This could allow the attacker to infer the viewer’s IP address and browser fingerprinting information. This vulnerability is fixed in Zulip Server 5.6. Zulip organizations with image and link previews [disabled](https://zulip.com/help/allow-image-link-previews) are not affected.
Products affected by CVE-2022-36048
- cpe:2.3:a:zulip:zulip:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-36048
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-36048
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
NIST | |
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
GitHub, Inc. |
CWE ids for CVE-2022-36048
-
Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.Assigned by: security-advisories@github.com (Primary)
References for CVE-2022-36048
-
https://github.com/zulip/zulip/security/advisories/GHSA-vg5m-mf9x-j452
IP address leak via image proxy bypass in Zulip Server · Advisory · zulip/zulip · GitHubThird Party Advisory
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