XSS in Aapanel

CVE-2026-29859

An arbitrary file upload vulnerability in aaPanel v7.57.0 allows attackers to execute arbitrary code via uploading a crafted file.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (40.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Aapanel — versions 7.57.0
  • N/a — versions n/a

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-29859?
CVE-2026-29859 is a critical-severity vulnerability in Aapanel, classified under Cross-site Scripting. CVSS score: 9.8/10. Published 2026-03-18.
How severe is CVE-2026-29859?
Critical severity. CVSS v3 base score is 9.8 out of 10.