#VU86749 Cross-site scripting in memos - CVE-2022-4839

Vulnerability identifier: #VU86749

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-4839

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
memos
Web applications / Modules and components for CMS

Vendor: memos

Description

The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote user can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

memos: 0.0.1 - 0.9.0

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External links
https://huntr.dev/bounties/ad954cab-f026-4895-8003-99f5e3b507ed
https://github.com/usememos/memos/commit/64e5c343c5f74b0abdf3ac0d21a6139daea58cf8

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.