CVE-2005-1628: apage.cgi in WebAPP 0.9.9.2.1, and possibly earlier versions, allows remote attackers to execute arbitrary com

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HIGH 7.5DOWNGRADE

CVE-2005-1628 is a high-severity flaw (CVSS 7.5) affecting webapp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

apage.cgi in WebAPP 0.9.9.2.1, and possibly earlier versions, allows remote attackers to execute arbitrary commands via shell metacharacters in the f parameter.

Why this priority

High severity
EPSS top 4%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	10.6% (top 4%)
CISA exploited list	No
Weakness	CWE-20
Published	2005-05-17
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: web-app.org

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

Am I affected?

Timeline

2005-05-17 04:00 UTCPublished CVE record published
2026-06-16 22:13 UTCUpdated Record last modified

web-app.org webapp DOWNGRADE

Affected: 0.9.9 · 0.9.9.2 · 0.9.9.2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.9.9

1. Check installed version

apt-cache policy webapp || rpm -q webapp || webapp --version

2. No fixed release: DOWNGRADE to a release before 0.9.9 (Debian / Ubuntu)

apt-cache madison webapp sudo apt install webapp=<VERSION_BEFORE_0.9.9> sudo apt-mark hold webapp

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

dnf --showduplicates list webapp sudo dnf downgrade webapp-<VERSION_BEFORE_0.9.9> sudo dnf versionlock add webapp

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: WebAPP 0.9.9.2.1 - Remote Command Execution (1)
Exploit-DB: WebAPP 0.9.9.2.1 - Remote Command Execution (2)

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-2005-1628?

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

Is CVE-2005-1628 being exploited?

CVE-2005-1628 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-2005-1628 affect?

CVE-2005-1628 affects webapp. Severity is high (CVSS 7.5). apage.cgi in WebAPP 0.9.9.2.1, and possibly earlier versions, allows remote attackers to execute arbitrary commands via shell metacharacters in the f parameter.

How urgent is CVE-2005-1628?

Priority 55/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference

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References

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