What it is
CVE-2026-34234 is an unauthenticated CtrlPanel: Unauthenticated RCE using installer script affecting Ctrlpanel-gg panel. CtrlPanel is open-source billing software for hosting providers. In versions 1.1.1 and prior,...
Vulnerability report
Exploited in the wild
High confidence
Not in CISA KEV
CVE-2026-34234
CtrlPanel: Unauthenticated RCE using installer script
Ctrlpanel-gg / panel · affected before 1.2.0
- Severity
- CVSS 10.0 · Critical
- Confidence
- High
- Exploit status
- Exploited in the wild
- EPSS
- 0.8%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.
Who is affected?
Ctrlpanel-gg / panel affected before 1.2.0.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
CtrlPanel is open-source billing software for hosting providers
CtrlPanel is open-source billing software for hosting providers. In versions 1.1.1 and prior, the web-based installer (public/installer/index.php) is vulnerable to unauthenticated Remote Code Execution (RCE) because it performs the install.lock check only after including and executing form handler files, leaving installer endpoints reachable on already-installed instances. The handlers also pass unsanitized user input directly into shell commands, allowing an attacker to submit crafted requests that execute arbitrary commands on the server.
The vulnerability stems from two combined weaknesses: (1) premature form handler execution before the lock file gate, and (2) unsafe use of user input in shell command construction. This issue is reported to be actively exploited in the wild. The issue has been fixed in version 1.2.0.
Vendor
Product
Affected
Status
Ctrlpanel-gg
panel
Before 1.2.0
Affected
- Published
- 19 May 2026
- Exploitation Reported
- 01 Jun 2026
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- None
- User interaction
- None
Tags
php
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2026-34234
- https://github.com/Ctrlpanel-gg/panel/security/advisories/GHSA-jmhr-q9q5-fqwh github.com · CVE Record https://github.com/Ctrlpanel-gg/panel/security/advisories/GHSA-jmhr-q...
- https://github.com/Ctrlpanel-gg/panel/releases/tag/1.2.0 github.com · CVE Record https://github.com/Ctrlpanel-gg/panel/releases/tag/1.2.0
Exploitation evidence
Why KEV Intelligence marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
CVE
Independent exploitation attestation added to the KEV Intelligence record.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2026-06-01 13:29 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- 0
- User-Agents
- 0
Raw values available in Pro and Enterprise.
Scanner coverage
No scanner integrations recorded yet.
Virtual patch status
No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Risk and context
Severity, weaknesses, and research context
CVSS v3.1
10.0
Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS
0.8%
Timeline
From disclosure to observed exploitation
-
Added to KEV Intelligence KEV Feed
High-confidence, third-party attested exploitation
-
CVE published
Vulnerability disclosed publicly
-
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2026-34234
Free JSON includes basic KEV fields{
"cve_id": "CVE-2026-34234",
"confidence": "High",
"cvss_score": 10.0,
"cvss_estimated": false,
"epss_score": 0.00821,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}Early warning alerts
Get alerts on high-impact exploitation
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