#VU89810 Stored cross-site scripting in Confluence Data Center - CVE-2024-21678

Vulnerability identifier: #VU89810

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-2024-21678

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Confluence Data Center
Server applications / Other server solutions

Vendor: Atlassian

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 permanently inject 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 update from vendor's website.

Vulnerable software versions

Confluence Data Center: 7.13.0 - 7.19.17, 7.20.0, 8.0.0 - 8.0.4, 8.1.0 - 8.1.4, 8.2.0 - 8.2.3, 8.3.0 - 8.3.4, 8.4.0 - 8.4.5, 8.5.0 - 8.5.4, 8.6.0 - 8.6.2, 8.7.0 - 8.7.1

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External links
https://confluence.atlassian.com/pages/viewpage.action?pageId=1354501606
https://jira.atlassian.com/browse/CONFSERVER-94513

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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.