CVE-2026-5301 PUBLISHED

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in coolercontrol-ui

Assigner: GitLab
Reserved: 01.04.2026 Published: 08.04.2026 Updated: 08.04.2026

Stored XSS in log viewer in CoolerControl/coolercontrol-ui <4.0.0 allows unauthenticated attackers to take over the service via malicious JavaScript in poisoned log entries

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
CVSS Score: 7.6

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	CoolerControl
Product	coolercontrol-ui
Versions	Default: unaffected affected from 2.0.0 to 4.0.0 (excl.)

Solutions

Upgrade to version 4.0.0

Credits

https://gitlab.com/lassi-3 finder

References

https://gitlab.com/coolercontrol/coolercontrol/-/blob/2.0.0/coolercontrol-ui/src/views/AppInfoView.vue?ref_type=tags#L224
https://gitlab.com/coolercontrol/coolercontrol/-/blob/3.1.1/coolercontrol-ui/src/views/AppInfoView.vue?ref_type=tags#L350
https://gitlab.com/coolercontrol/coolercontrol/-/releases/4.0.0

Problem Types

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