Description
Cross-site scripting (XSS) vulnerability in auth.php in Just For Fun Network Management System (JFFNMS) 0.8.3 allows remote attackers to inject arbitrary web script or HTML via the user parameter.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 4.0 | jffnms | 0.8.3dfsg.1-2.1etch1 | DSA-1374-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- JFFNms 0.8.3 - 'auth.php?user' Cross-Site Scripting EDB-30172 · webapps · Jun 11, 2007 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- DSA-1374-1 jffnms - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-1374 vendor-advisory
- 20070610 Serious holes affecting JFFNMS mailing-list
- 26769 third-party-advisory
- 24414 vdb-entry
- 25587 third-party-advisory
- 20070610 Serious holes affecting JFFNMS mailing-list