CVE-2023-49276
Attribute Injection leading to XSS(Cross-Site-Scripting)
Description
### Summary Google Analytics element Attribute Injection leading to XSS ### Details Since the custom status interface can set an independent Google Analytics ID and the template has not been sanitized, there is an attribute injection vulnerability here, which can lead to XSS attacks.  ### PoC 1. Run the latest version of the louislam/uptime-kuma container and initialize the account password. 2. Create a new status page. 3. Edit the status page and change the Google Analytics ID to following payload(it only works for firefox. Any attribute can be injected, but this seems the most intuitive): ``` 123123" onafterscriptexecute=alert(window.name+1),eval(window.name) a="x ``` 4. Click Save and return to the interface. XSS occurs. screenshots:  
How to fix CVE-2023-49276
To remediate CVE-2023-49276, upgrade the affected package to a fixed version below.
- —upgrade to 1.23.7 or later
Is CVE-2023-49276 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 1.20.0, < 1.23.7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |