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Fencer Vulns
medium 5.1

CVE-2003-0488 json

Multiple cross-site scripting (XSS) vulnerabilities in Kerio MailServer 5.6.3 allow remote attackers to insert arbitrary web script via (1)…

published 2003-06-28 23 y ago modified 2026-06-16 4 mo ago also EUVD-2003-0482

cvss
5.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.8%
EPSS 6.8% chance of exploitation in 30 days, percentile 94%
public exploits
2
Exploit-DB

Summary

Multiple cross-site scripting (XSS) vulnerabilities in Kerio MailServer 5.6.3 allow remote attackers to insert arbitrary web script via (1) the add_name parameter in the add_acl module, or (2) the alias parameter in the do_map module.

Patch / fix

Timeline

  1. First public exploit (EDB-22804)
  2. Published

Exploit prediction

6.78% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-22804 Kerio MailServer 5.6.3 - Web Mail DO_MAP Module Cross-Site Scripting webapps, 2003-06-18
  • EDB-22799 Kerio MailServer 5.6.3 - Web Mail ADD_ACL Module Cross-Site Scripting webapps, 2003-06-18
  • securityfocus.com http://www.securityfocus.com/bid/7968 referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/7966 referenced PoC, tagged "exploit" by a source, unverified
  • nautopia.org http://nautopia.org/vulnerabilidades/kerio_mailserver.htm referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.1 AV:N/AC:H/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.