What is CVE-2021-26628?

CVE-2021-26628 is a high-severity vulnerability in Linux Kernel, classified under Cross-site Scripting. CVSS score: 8.1/10. Published 2022-04-26.

How severe is CVE-2021-26628?

High severity. CVSS v3 base score is 8.1 out of 10.

XSS in Linux Kernel

CVE-2021-26628

Insufficient script validation of the admin page enables XSS, which causes unauthorized users to steal admin privileges. When uploading file in a specific menu, the verification of the files is insufficient. It allows remote attackers to upload arbitrary files disguising them as image files.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (51.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

Affected products

Linux Linux_kernel
Maxb Maxboard
No Vendor Information Maxboard — versions unspecified

Weakness classification (CWE)

References

vuln@krcert.or.kr (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-26628?: CVE-2021-26628 is a high-severity vulnerability in Linux Kernel, classified under Cross-site Scripting. CVSS score: 8.1/10. Published 2022-04-26.
How severe is CVE-2021-26628?: High severity. CVSS v3 base score is 8.1 out of 10.