CVE-2026-34802 | THREATINT

Description

Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the remark user ham spam parameter to /cgi-bin/salearn.cgi. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page.

PUBLISHED Reserved 2026-03-30 | Published 2026-04-02 | Updated 2026-04-03 | Assigner VulnCheck

MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

MEDIUM: 6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status

unaffected

3.3.25 (semver)

affected

Credits

Alex Williams from Pellera Technologies finder

VulnCheck coordinator

References

help.endian.com/hc/en-us/sections/360004371358-Community (Endian Release Notes) release-notes

www.vulncheck.com/...er-ham-spam-stored-cross-site-scripting (VulnCheck Advisory: Endian Firewall /cgi-bin/salearn.cgi remark user ham spam Stored Cross-Site Scripting) third-party-advisory

cve.org (CVE-2026-34802)

nvd.nist.gov (CVE-2026-34802)

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