XSS in Gotify Server
CVE-2022-46181
Gotify server is a simple server for sending and receiving messages in real-time per WebSocket. Versions prior to 2.2.2 contain an XSS vulnerability that allows authenticated users to upload .html files. An attacker could execute client side scripts **if** another user opened a link. The attacker could potentially take over the account of the user that clicked the link. The Gotify UI won't natively expose such a malicious link, so an attacker has to get the user to open the malicious link in a context outside of Gotify. The vulnerability has been fixed in version 2.2.2. As a workaround, you can block access to non image files via a reverse proxy in the `./image` directory.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (40.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Gotify Server — versions < 2.2.2
Weakness classification (CWE)
References
- github.com/gotify/server/security/advisories/GHSA-xv6x-456v-24xh (Third Party Advisory)
- github.com/gotify/server/pull/534 (Patch, Third Party Advisory)
- github.com/gotify/server/pull/535 (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-46181?
- CVE-2022-46181 is a medium-severity vulnerability in Gotify Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-12-29.
- How severe is CVE-2022-46181?
- Medium severity. CVSS v3 base score is 6.1 out of 10.