TI-2019-13575 Aliases CVE-2019-18839 GHSA-56fg-j4m5-gggf

FUDForum 3.0.9 is vulnerable to Stored XSS via the nlogin parameter.

MEDIUM 47CWE-78Published 2019-11-13 · Updated 2024-08-05

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: Code execution, Cross-site scripting
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78 and CWE-79.

Summary

FUDForum 3.0.9 is vulnerable to Stored XSS via the nlogin parameter. This may result in remote code execution. An attacker can use a user account to fully compromise the system using a POST request. When the admin visits the user information, the payload will execute. This will allow for PHP files to be written to the web root, and for code to execute on the remote server.

Why it matters now

EPSS 0.05436 92nd percentileScored 2026-11-07

Public exploit Yes 2 exploit referencesTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:fudforum:fudforum:3.0.9:::::::*	3.0.9	Vulnerable	Fudforum

cpe:2.3:a:fudforum:fudforum:3.0.9:*:*:*:*:*:*:* Versions 3.0.9 Vulnerable ·Fudforum

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2019-18839
2026-10-03 Alias added: GHSA-56fg-j4m5-gggf

References

Exploit 2

TI-2024-20407 FUDforum v3.1.3 was discovered to contain a reflected cross-site scripting (XSS)… CVSS 3.1MEDIUM 6.1
TI-2022-12961 FUDforum 3.1.2 is vulnerable to Remote Code Execution through Upload File feature of File… CVSS 3.1HIGH 7.2
TI-2024-20406 A stored cross-site scripting (XSS) vulnerability in FUDforum v3.1.3 allows attackers to… CVSS 3.1LOW 3.5
TI-2019-13606 FUDForum 3.0.9 is vulnerable to Stored XSS via the User-Agent HTTP header. CVSS 3.1CRITICAL 9.0
TI-2013-02026 PHP Code Injection vulnerability in FUDforum Bulletin Board Software 3.0.4 could allow… CVSS 3.1HIGH 7.2
TI-2021-08998 A cross-site scripting (XSS) issue in FUDForum 3.1.0 allows remote attackers to inject… CVSS 3.1MEDIUM 6.1

See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences