CVE-2002-0095: The default configuration of BSCW (Basic Support for Cooperative Work) 3.x and possibly version 4 enables user

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HIGH 7.5DOWNGRADE

CVE-2002-0095 is a high-severity flaw (CVSS 7.5) affecting bscw. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The default configuration of BSCW (Basic Support for Cooperative Work) 3.x and possibly version 4 enables user self registration, which could allow remote attackers to upload files and possibly join a user community that was intended to be closed.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.8% (top 14%)
CISA exploited list	No
Published	2002-03-25
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: fraunhofer fit

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

Am I affected?

Timeline

2002-03-25 05:00 UTCPublished CVE record published
2026-06-16 21:56 UTCUpdated Record last modified

fraunhofer fit bscw DOWNGRADE

Affected: 3.4 · 4.0 · 4.0.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.4 (Debian / Ubuntu)

apt-cache madison bscw sudo apt install bscw=<VERSION_BEFORE_3.4> sudo apt-mark hold bscw

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

dnf --showduplicates list bscw sudo dnf downgrade bscw-<VERSION_BEFORE_3.4> sudo dnf versionlock add bscw

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: BSCW 3.4/4.0 - Insecure Default Installation

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-2002-0095?

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

Is CVE-2002-0095 being exploited?

CVE-2002-0095 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-2002-0095 affect?

CVE-2002-0095 affects bscw. Severity is high (CVSS 7.5). The default configuration of BSCW (Basic Support for Cooperative Work) 3.x and possibly version 4 enables user self registration, which could allow remote attackers to upload files and possibly join a user community that was intended to be

How urgent is CVE-2002-0095?

Priority 53/100. High severity; Public exploit reference

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CVE-2002-0094 HIGH 7.5 DOWNGRADE config_converters.py in BSCW (Basic Support for Cooperative Work) 3.x and versions before 4.06 allows remote a
CVE-2001-0973 MEDIUM 6.4 UPGRADE BSCW groupware system 3.3 through 4.0.2 beta allows remote attackers to read or modify arbitrary files by uplo

References

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