Description
Interchange before 5.0.1 allows remote attackers to "expose the content of arbitrary variables" and read or modify sensitive SQL information via an HTTP request ending with the "__SQLUSER__" string.
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 3.0 | interchange | 4.8.3.20020306-1.woody.2 | DSA-471 |
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
- Interchange 4.8.x/5.0 - Remote Information Disclosure EDB-23895 · webapps · Mar 30, 2004 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- DSA-471 interchange - missing input sanitising Debian Security (DSA / DLA) · Mar 9, 2026
References
- [interchange-announce] 20040329 Security Problem in Interchange mailing-list
- 10005 vdb-entry
- http://ftp.icdevgroup.org/interchange/5.0/WHATSNEW
- interchange-url-obtain-information(15670) vdb-entry
- 11234 third-party-advisory
- DSA-471 vendor-advisory