Description
Cross-site scripting (XSS) vulnerability in the create list option in Sympa 4.1.x and earlier allows remote authenticated users to inject arbitrary web script or HTML via the description field.
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 14 | sympa | 4.1.5-4 | — |
| Debian 13 | sympa | 4.1.5-4 | — |
| Debian 12 | sympa | 4.1.5-4 | — |
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
- Sympa 4.x - New List HTML Injection EDB-24389 · webapps · Aug 21, 2004 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 10992 vdb-entry
- sympa-description-xss(17057) vdb-entry
- 20040820 Cross Site Scripting Vulnerability in Sympa mailing-list
- 12339 third-party-advisory