Cross-site scripting in Grafana

1) Cross-site scripting

EUVDB-ID: #VU109656

Risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear]

CVE-ID: CVE-2025-4123

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: Yes

Description

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

The vulnerability exists due to insufficient sanitization of user-supplied data passed via custom loaded frontend plugin. The vulnerability allows attackers to redirect users to a website that hosts a frontend plugin that will execute arbitrary JavaScript.

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

Grafana: 10.0.0 - 12.0.0

CPE2.3

• cpe:2.3:a:grafana_labs:grafana:10.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:grafana_labs:grafana:10.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:grafana_labs:grafana:10.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:grafana_labs:grafana:10.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:grafana_labs:grafana:10.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:grafana_labs:grafana:10.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:grafana_labs:grafana:10.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:grafana_labs:grafana:10.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:grafana_labs:grafana:10.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:grafana_labs:grafana:10.0.10:*:*:*:*:*:*:*

External links

https://grafana.com/security/security-advisories/cve-2025-4123/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.