CVE-2004-0260: The AddToMailingList function in CactuSoft CactuShop 5.0 Lite contains a backdoor that allows remote attackers

Routine

MEDIUM 5.0DOWNGRADE

CVE-2004-0260 is a medium-severity flaw (CVSS 5.0) affecting cactushop lite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The AddToMailingList function in CactuSoft CactuShop 5.0 Lite contains a backdoor that allows remote attackers to delete arbitrary files via an email address that starts with |||.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Published	2004-11-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: cactusoft

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

Am I affected?

Timeline

2004-11-23 05:00 UTCPublished CVE record published
2026-06-16 22:05 UTCUpdated Record last modified

cactusoft cactushop lite DOWNGRADE

Affected: 5.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0

1. Check installed version

apt-cache policy cactushop-lite || rpm -q cactushop-lite || cactushop-lite --version

2. No fixed release: DOWNGRADE to a release before 5.0 (Debian / Ubuntu)

apt-cache madison cactushop-lite sudo apt install cactushop-lite=<VERSION_BEFORE_5.0> sudo apt-mark hold cactushop-lite

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

dnf --showduplicates list cactushop-lite sudo dnf downgrade cactushop-lite-<VERSION_BEFORE_5.0> sudo dnf versionlock add cactushop-lite

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-2004-0260?

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

Is CVE-2004-0260 being exploited?

CVE-2004-0260 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-2004-0260 affect?

CVE-2004-0260 affects cactushop lite. Severity is medium (CVSS 5.0). The AddToMailingList function in CactuSoft CactuShop 5.0 Lite contains a backdoor that allows remote attackers to delete arbitrary files via an email address that starts with |||.

How urgent is CVE-2004-0260?

Priority 35/100. No elevated risk signals yet.

References

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