CVE-2004-2743: upload.cgi in Mega Upload Progress Bar before 1.45 allows remote attackers to copy or overwrite arbitrary file

This month

MEDIUM 6.4DOWNGRADE

CVE-2004-2743 is a medium-severity flaw (CVSS 6.4) affecting mega upload progress bar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

upload.cgi in Mega Upload Progress Bar before 1.45 allows remote attackers to copy or overwrite arbitrary files via unspecified parameters related to names of uploaded files.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.4 (Medium)
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-264
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: raditha dissanayake

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

Am I affected?

Timeline

2004-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:10 UTCUpdated Record last modified

raditha dissanayake mega upload progress bar DOWNGRADE

Affected: 1.30 · 1.35 · 1.43 · 1.44

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.30

1. Check installed version

apt-cache policy mega-upload-progress-bar || rpm -q mega-upload-progress-bar || mega-upload-progress-bar --version

2. No fixed release: DOWNGRADE to a release before 1.30 (Debian / Ubuntu)

apt-cache madison mega-upload-progress-bar sudo apt install mega-upload-progress-bar=<VERSION_BEFORE_1.30> sudo apt-mark hold mega-upload-progress-bar

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

dnf --showduplicates list mega-upload-progress-bar sudo dnf downgrade mega-upload-progress-bar-<VERSION_BEFORE_1.30> sudo dnf versionlock add mega-upload-progress-bar

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.

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-2004-2743?

mega upload progress bar: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2004-2743 being exploited?

CVE-2004-2743 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-2004-2743 affect?

CVE-2004-2743 affects mega upload progress bar. Severity is medium (CVSS 6.4). upload.cgi in Mega Upload Progress Bar before 1.45 allows remote attackers to copy or overwrite arbitrary files via unspecified parameters related to names of uploaded files.

How urgent is CVE-2004-2743?

Priority 41/100. No elevated risk signals yet.

References

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