How severe is CVE-2004-0621?

CVE-2004-0621 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2004-0621 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-0621?

CVE-2004-0621 affects Zaireweb Solutions Newsletter Zws. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2004-0621?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2004-0621 published?

CVE-2004-0621 was published on 2004-12-06 and last updated on 2026-06-16.

CVE-2004-0621

CVE-2004-0621 is a critical-severity vulnerability in Zaireweb Solutions Newsletter Zws with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Zaireweb Solutions Newsletter Zws
Published: 2004-12-06
Last modified: 2026-06-16

Description

admin.php in Newsletter ZWS allows remote attackers to gain administrative privileges via a list_user operation with the ulevel parameter set to 1 (administrator level), which lists all users and their passwords.

Frequently asked questions

What is CVE-2004-0621?: admin.php in Newsletter ZWS allows remote attackers to gain administrative privileges via a list_user operation with the ulevel parameter set to 1 (administrator level), which lists all users and their passwords.
How severe is CVE-2004-0621?: CVE-2004-0621 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2004-0621 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0621?: CVE-2004-0621 affects Zaireweb Solutions Newsletter Zws. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2004-0621?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2004-0621 published?: CVE-2004-0621 was published on 2004-12-06 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:zaireweb_solutions:newsletter_zws:*:*:*:*:*:*:*:*