CVE-2008-6660: Unrestricted file upload vulnerability in bigdump.php in Alexey Ozerov BigDump 0.29b allows remote attackers t

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MEDIUM 6.8DOWNGRADE

CVE-2008-6660 is a medium-severity flaw (CVSS 6.8) affecting bigdump. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unrestricted file upload vulnerability in bigdump.php in Alexey Ozerov BigDump 0.29b allows remote attackers to execute arbitrary code by uploading a file with an executable extension followed by a .sql extension, then accessing this file via a direct request. NOTE: some of these details are obtained from third party information.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	3.0% (top 13%)
CISA exploited list	No
Published	2009-04-07
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: ozerov

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

Am I affected?

Timeline

2009-04-07 19:30 UTCPublished CVE record published
2026-06-16 23:02 UTCUpdated Record last modified

ozerov bigdump DOWNGRADE

Affected: 029b

Fixed in: no fixed release known

Safe to downgrade to: a release before 029b

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 029b (Debian / Ubuntu)

apt-cache madison bigdump sudo apt install bigdump=<VERSION_BEFORE_029b> sudo apt-mark hold bigdump

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

dnf --showduplicates list bigdump sudo dnf downgrade bigdump-<VERSION_BEFORE_029b> sudo dnf versionlock add bigdump

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: BigDump 0.35b - 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-2008-6660?

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

Is CVE-2008-6660 being exploited?

CVE-2008-6660 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-2008-6660 affect?

CVE-2008-6660 affects bigdump. Severity is medium (CVSS 6.8). Unrestricted file upload vulnerability in bigdump.php in Alexey Ozerov BigDump 0.29b allows remote attackers to execute arbitrary code by uploading a file with an executable extension followed by a .sql extension, then accessing this file v

How urgent is CVE-2008-6660?

Priority 51/100. Public exploit reference

Software pages

PHP vulnerabilities

References

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