CVE-2018-25349

MEDIUM 6.1

userSpice 4.3.24 Cross-Site Scripting via X-Forwarded-For Header

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

userSpice 4.3.24 contains a cross-site scripting vulnerability that allows attackers to inject malicious scripts through the X-Forwarded-For HTTP header. Attackers can send crafted requests to the backup.php endpoint with XSS payloads in the X-Forwarded-For header that execute when administrators visit the audit log page.

CWE	CWE-79
Vendor	userspice
Product	userspice
Published	May 23, 2026
Last Updated	May 27, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

UserSpice / userSpice

4.3.24

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/44871 vulncheck.com: https://www.vulncheck.com/advisories/userspice-cross-site-scripting-via-x-forwarded-for-header

Credits

Dolev Farhi