CVE-2026-5301

7.6 HIGH 0.3% exploit odds No fix listed XSS Web app

What it is

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

At a glance

Exploitability: Can be exploited over the network without logging in, but needs a user to act. High risk of data tampering.
Exploit odds: 0.3% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2026-04-01 05:33 UTC ReservedThe CVE id was reserved by its CNA
2026-04-08 13:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-23 22:10 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.3% in the next 30 days (EPSS).
Severity: 7.6 HIGH (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2026-04-08 13:16 UTC
Last modified: 2026-10-23 22:10 UTC
Exploit probability: 0.3% · EPSS, next 30 days
Weakness: CWE-79 · Cross-site scripting
Record status: Analyzed

Affected

Coolercontrol Coolercontrold < 4.0.0

Attack profile CVSS 3.1 · 7.6

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required
Scope: Unchanged
Confidentiality: Low
Integrity: High
Availability: Low

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-5301.md and follow it. Check whether this project is affected by CVE-2026-5301. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record