IPFire 2.21 Core Update 127 contains a reflected cross-site scripting vulnerability in the updatexlrator.cgi script that allows attackers to inject malicious scripts through POST parameters. Attackers can submit crafted requests with script payloads in the MAX_DISK_USAGE or MAX_DOWNLOAD_RATE parameters to execute arbitrary JavaScript in users' browsers.
https://www.vulncheck.com/advisories/ipfire-core-update-reflected-xss-via-updatexlrator
https://www.exploit-db.com/exploits/46344
https://downloads.ipfire.org/releases/ipfire-2.x/2.21-core127/ipfire-2.21.x86_64-full-core127.iso
Published: 2026-02-18
Updated: 2026-02-19
Base Score: 6.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
Severity: Medium
Base Score: 6.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Severity: Medium
Base Score: 5.1
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Severity: Medium
EPSS: 0.00029