How severe is CVE-2006-6661?

CVE-2006-6661 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2006-6661 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-6661?

CVE-2006-6661 affects Php-update. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-6661?

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-2006-6661 published?

CVE-2006-6661 was published on 2006-12-20 and last updated on 2026-06-16.

CVE-2006-6661

CVE-2006-6661 is a high-severity vulnerability in Php-update 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: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Php-update
Published: 2006-12-20
Last modified: 2026-06-16

Description

Variable overwrite vulnerability in blog.php in PHP-Update 2.7 and earlier allows remote attackers to overwrite arbitrary program variables and execute arbitrary PHP code via multiple vectors that use the extract function, as demonstrated by the (1) f, (2) newmessage, (3) newusername, (4) adminuser, and (5) permission parameters.

Frequently asked questions

What is CVE-2006-6661?: Variable overwrite vulnerability in blog.php in PHP-Update 2.7 and earlier allows remote attackers to overwrite arbitrary program variables and execute arbitrary PHP code via multiple vectors that use the extract function, as demonstrated by the (1) f, (2) newmessage, (3) newusername, (4) adminuser, and (5) permission parameters.
How severe is CVE-2006-6661?: CVE-2006-6661 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-6661 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6661?: CVE-2006-6661 affects Php-update. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-6661?: 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-2006-6661 published?: CVE-2006-6661 was published on 2006-12-20 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:php-update:php-update:*:*:*:*:*:*:*:*

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