Vulnerability Details : CVE-2023-25154
Misskey is an open source, decentralized social media platform. In versions prior to 13.5.0 the link to the instance to the sender that appears when viewing a user or note received through ActivityPub is not properly validated, so by inserting a URL with a javascript scheme an attacker may execute JavaScript code in the context of the recipient. This issue has been fixed in version 13.5.0. Users are advised to upgrade. Users unable to upgrade should not "view on remote" for untrusted instances.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2023-25154
- cpe:2.3:a:misskey:misskey:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-25154
0.23%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-25154
| 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-2023-25154
-
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-2023-25154
-
https://github.com/misskey-dev/misskey/security/advisories/GHSA-pfp5-r48x-fg25
XSS of ActivityPub URI · Advisory · misskey-dev/misskey · GitHubVendor Advisory
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