How severe is CVE-2005-1871?

CVE-2005-1871 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2005-1871 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-1871?

CVE-2005-1871 primarily affects Drupal. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-1871?

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

When was CVE-2005-1871 published?

CVE-2005-1871 was published on 2005-06-09 and last updated on 2026-06-16.

CVE-2005-1871

CVE-2005-1871 is a high-severity vulnerability in Drupal with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Drupal
Published: 2005-06-09
Last modified: 2026-06-16

Description

Unknown vulnerability in the privilege system in Drupal 4.4.0 through 4.6.0, when public registration is enabled, allows remote attackers to gain privileges, due to an "input check" that "is not implemented properly."

Frequently asked questions

What is CVE-2005-1871?: Unknown vulnerability in the privilege system in Drupal 4.4.0 through 4.6.0, when public registration is enabled, allows remote attackers to gain privileges, due to an "input check" that "is not implemented properly."
How severe is CVE-2005-1871?: CVE-2005-1871 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2005-1871 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-1871?: CVE-2005-1871 primarily affects Drupal. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-1871?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2005-1871 published?: CVE-2005-1871 was published on 2005-06-09 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:a:drupal:drupal:4.4.0:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:4.4.1:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:4.4.2:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:4.5.0:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:4.5.1:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:4.5.2:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:4.6.0:*:*:*:*:*:*:*

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