CVE-2026-87820

MediumPublished

CyberPanel 2.4.3 through 2.4.5 Information Disclosure via AI Scanner

Published: Sep 9, 2026
Updated: Sep 14, 2026
Assigning CNA: VulnCheck

Primary CVSS

6.9/ 10Medium

nvd · CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS probability estimate

0.9%

Low · next 30 days

Percentile: 58.5%
Model date: Oct 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

CyberPanel versions 2.4.3 through 2.4.5 expose unauthenticated AI Scanner debugging endpoints that disclose administrator usernames, API-key prefixes, scan identifiers, target domains, and account metadata. Unauthenticated attackers can enumerate panel administrators and recent scanner activity to inventory multi-tenant installations and facilitate follow-on attacks.

Sources

Repository evidence: Files: 1 · Repositories: 1

1 Template

CyberPanel 2.4.3-2.4.5 - AI Scanner Debug DisclosureTemplate
http/cves/2026/CVE-2026-87820.yaml
Nuclei Templates
DetectionEvidence observed: Sep 26, 2026Revision: 1f4c3f6568abRelated tool
Declared conditions
- network: http($.protocol_keys)
- verification: dsl($.matchers[*].type)

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