CVE-2026-5301: coolercontrol-ui · Cross-site Scripting
Affects coolercontrol-uiSource CVE Database V5
Not known to be exploited · CVSS 7.6 High : upgrade to 4.0.0 soon.
Data as of 30 Oct 2026, 06:59 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.0.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:LExploitation evidence
Disclosed: evidence found.
CVE published 8 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade coolercontrol-ui to 4.0.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| CoolerControlcoolercontrol-ui | Affected
| Fixed in
|
AI-suggested
In the meantime, restricting access to the log viewer interface and sanitizing or validating log inputs may reduce exposure.
Description
CVE-2026-5301 is a stored cross-site scripting (XSS) vulnerability in the log viewer component of CoolerControl's coolercontrol-ui versions prior to 4.0.0. This vulnerability allows unauthenticated attackers to inject malicious JavaScript into log entries, which can lead to service takeover. The vulnerability has a high severity with a CVSS score of 7.6. There are no known exploits in the wild at this time.
References
- gitlab.com/coolercontrol/coolercontrol/-/blob/2.0.0/coolercontrol-ui/src/views/AppInfoView.vue?ref_type=tags (opens in a new tab)
- gitlab.com/coolercontrol/coolercontrol/-/blob/3.1.1/coolercontrol-ui/src/views/AppInfoView.vue?ref_type=tags (opens in a new tab)
- gitlab.com/coolercontrol/coolercontrol/-/releases/4.0.0 (opens in a new tab)