The showcode.asp sample file in IIS and Site Server allows remote attackers to read arbitrary files.

published 1999-05-07 27 y ago modified 2026-06-16 4 mo ago also EUVD-1999-0717

cvss: 5.0; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 44.8%; EPSS 44.8% chance of exploitation in 30 days, percentile 98%
public exploits: 1; Exploit-DB

Timeline

1999-05-07 First public exploit (EDB-19129)
1999-05-07 Published

Exploit prediction

44.84% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

EDB-19129 Microsoft IIS 4.0 / Microsoft Site Server 3.0 - Showcode ASP remote, 1999-05-07

CVSS scores

assigned by	version	score	vector
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

References

docs.microsoft.com /en-us/security-updates/securitybulletins/1999/ms99-013
vendor-advisory
oval.cisecurity.org /repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A932
vdb-entry, signature

Sources

CVE List CVE-1999-0736
NVD CVE-1999-0736

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.

Summary