CVE-1999-0360: MS Site Server 2.0 with IIS 4 can allow users to upload content, including ASP, to the target web site, thus a

This month

HIGH 7.2WATCHLISTDOWNGRADE

CVE-1999-0360 is a high-severity flaw (CVSS 7.2) affecting site server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

MS Site Server 2.0 with IIS 4 can allow users to upload content, including ASP, to the target web site, thus allowing them to execute commands remotely.

Why this priority

High severity
EPSS top 7%: very likely to be exploited
Public exploit reference
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.2 (High)
EPSS exploit chance	5.6% (top 7%)
CISA exploited list	No
Published	1999-01-30
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: microsoft

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

1999-01-30 05:00 UTCPublished CVE record published
2026-06-16 21:48 UTCUpdated Record last modified

microsoft site server DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy site-server || rpm -q site-server || site-server --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison site-server sudo apt install site-server=<VERSION_BEFORE_2.0> sudo apt-mark hold site-server

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list site-server sudo dnf downgrade site-server-<VERSION_BEFORE_2.0> sudo dnf versionlock add site-server

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Microsoft Site Server 2.0 with IIS 4.0 - Arbitrary File Upload

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-1999-0360?

site server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-1999-0360 being exploited?

CVE-1999-0360 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-1999-0360 affect?

CVE-1999-0360 affects site server. Severity is high (CVSS 7.2). MS Site Server 2.0 with IIS 4 can allow users to upload content, including ASP, to the target web site, thus allowing them to execute commands remotely.

How urgent is CVE-1999-0360?

Priority 58/100. High severity; EPSS top 7%: very likely to be exploited; Public exploit reference; On your watchlist

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References

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