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Fencer Vulns
medium 6.8

CVE-2004-1100 json

Cross-site scripting (XSS) vulnerability in mailpost.exe in MailPost 5.1.1sv, and possibly earlier versions, when debug mode is enabled, al…

published 2004-12-01 21 y ago modified 2026-06-16 4 mo ago also EUVD-2004-1098

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.1%
EPSS 5.1% chance of exploitation in 30 days, percentile 92%
public exploits
1
Exploit-DB

Summary

Cross-site scripting (XSS) vulnerability in mailpost.exe in MailPost 5.1.1sv, and possibly earlier versions, when debug mode is enabled, allows remote attackers to execute arbitrary web script or HTML via the append parameter.

Timeline

  1. First public exploit (EDB-24721)
  2. Published

Exploit prediction

5.13% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-24721 TIPS MailPost 5.1.1 - 'APPEND' Cross-Site Scripting webapps, 2004-11-03
  • securityfocus.com http://www.securityfocus.com/bid/11596 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.