PT-2023-19942 · Misskey · Misskey

Ry0Tak · Published 2023-02-22 · Updated 2023-03-03 · CVE-2023-25154

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Name of the Vulnerable Software and Affected Versions Misskey versions prior to 13.5.0

Description Misskey is an open source, decentralized social media platform. The link to the instance of the sender that appears when viewing a user or note received through ActivityPub is not properly validated in affected versions, allowing an attacker to execute JavaScript code in the context of the recipient by inserting a URL with a javascript scheme.

Recommendations For versions prior to 13.5.0, upgrade to version 13.5.0 to fix the issue. For users unable to upgrade, do not "view on remote" for untrusted instances as a temporary workaround.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2023-25154

GHSA-PFP5-R48X-FG25

Affected Products

Misskey

References · 5

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/25xxx/CVE-2023-25154.json · Exploit
• https://github.com/misskey-dev/misskey/security/advisories/GHSA-pfp5-r48x-fg25 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-25154 · Security Note
• https://osv.dev/vulnerability/CVE-2023-25154 · Vendor Advisory
• https://t.me/cibsecurity/58706 · Telegram Post