What is CVE-2026-34241?

CVE-2026-34241 is a high-severity vulnerability in Ctrlpanel-gg Panel, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-05-19.

How severe is CVE-2026-34241?

High severity. CVSS v3 base score is 8.7 out of 10.

XSS in Ctrlpanel-gg Panel

CVE-2026-34241

CtrlPanel is open-source billing software for hosting providers. Versions 1.1.1 and prior contain a Stored Cross-Site Scripting (XSS) vulnerability in the ticket reply notification system. Unsanitized reply content ($newmessage) is stored…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (11.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

Ctrlpanel-gg Panel — versions < 1.2.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-34241?: CVE-2026-34241 is a high-severity vulnerability in Ctrlpanel-gg Panel, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-05-19.
How severe is CVE-2026-34241?: High severity. CVSS v3 base score is 8.7 out of 10.