CVE-2026-34241Public exploitNetwork attack vector

Session hijacking via unescaped ticket reply notifications

Published May 19, 2026 · Updated May 19, 2026

Stored XSS in CtrlPanel 1.1.1 and earlier allows remote authenticated users to execute JavaScript through ticket reply notifications. The two ticket-reply notification classes store $newmessage without sanitization, and the notification view inserts it as raw Blade output. A regular user must post a crafted reply and an administrator must open the notification panel; execution in that browser context enables session theft and administrative actions.

CVSS severity8.7
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in CtrlPanel 1.1.1 and earlier allows remote authenticated users to execute JavaScript through ticket reply notifications. The two ticket-reply notification classes store $newmessage without sanitization, and the notification view inserts it as raw Blade output. A regular user must post a crafted reply and an administrator must open the notification panel; execution in that browser context enables session theft and administrative actions.

The record

CVE
CVE-2026-34241
Published
May 19, 2026
Updated
May 19, 2026
Vendor
CtrlPanel.gg
Product
CtrlPanel
Classifications
CWE-79, T1539, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 19, 2026CVE publishedPublication date reported by the CVE source.
  2. May 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CtrlPanel.gg · CtrlPanelversion=< 1.2.0

Published CVSS scores

8.7GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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