Vulnerability Details : CVE-2023-24811
Misskey is an open source, decentralized social media platform. In versions prior to 13.3.2 the URL preview function is subject to a cross site scripting vulnerability due to insufficient URL validation. Arbitrary JavaScript is executed when a malicious URL is loaded in the `View in Player` or `View in Window` preview. This has been fixed in version 13.3.2. Users are advised to upgrade. Users unable to upgrade should avoid usage of the `View in Player` or `View in Window` functions.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2023-24811
- cpe:2.3:a:misskey:misskey:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-24811
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 34 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-24811
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST | |
|
7.1
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L |
2.8
|
3.7
|
GitHub, Inc. |
CWE ids for CVE-2023-24811
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2023-24811
-
https://github.com/misskey-dev/misskey/security/advisories/GHSA-vc39-c453-67g3
XSS vulnerability using url preview · Advisory · misskey-dev/misskey · GitHubVendor Advisory
-
https://github.com/misskey-dev/misskey/commit/38f9d1e76428bea47c5944c440eab25428c7d99e
fix(client): validate urls to improve security · misskey-dev/misskey@38f9d1e · GitHubPatch
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