How severe is CVE-2006-1644?

CVE-2006-1644 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2006-1644 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-1644?

CVE-2006-1644 primarily affects Interact. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-1644?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-1644 published?

CVE-2006-1644 was published on 2006-04-06 and last updated on 2026-06-16.

CVE-2006-1644

CVE-2006-1644 is a medium-severity vulnerability in Interact with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Interact
Published: 2006-04-06
Last modified: 2026-06-16

Description

login.php in Interact 2.1.1 generates different responses depending on whether or not a username is valid, which allows remote attackers to determine valid usernames. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Frequently asked questions

What is CVE-2006-1644?: login.php in Interact 2.1.1 generates different responses depending on whether or not a username is valid, which allows remote attackers to determine valid usernames. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
How severe is CVE-2006-1644?: CVE-2006-1644 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2006-1644 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-1644?: CVE-2006-1644 primarily affects Interact. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-1644?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-1644 published?: CVE-2006-1644 was published on 2006-04-06 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:interact:interact:*:*:*:*:*:*:*:*
cpe:2.3:a:interact:interact:1.8.7:*:*:*:*:*:*:*
cpe:2.3:a:interact:interact:1.9:*:*:*:*:*:*:*
cpe:2.3:a:interact:interact:1.9.1:*:*:*:*:*:*:*
cpe:2.3:a:interact:interact:2.0:*:*:*:*:*:*:*
cpe:2.3:a:interact:interact:2.1:*:*:*:*:*:*:*

More vulnerabilities in Interact

CVE-2006-1643 — High (CVSS 7.5): SQL injection vulnerability in login.php in Interact 2.1.1 allows remote attackers to execute arbitrary SQL commands…
CVE-2008-2220 — Medium (CVSS 6.8): Multiple PHP remote file inclusion vulnerabilities in Interact Learning Community Environment Interact 2.4.1, when…
CVE-2007-4177 — Medium (CVSS 4.3): Multiple cross-site scripting (XSS) vulnerabilities in Interact before 2.4 allow remote attackers to inject arbitrary…
CVE-2007-3328 — Medium (CVSS 4.3): Multiple cross-site scripting (XSS) vulnerabilities in Interact 2.4 beta 1 allow remote attackers to inject arbitrary…
CVE-2006-1642 — Low (CVSS 2.6): Cross-site scripting (XSS) vulnerability in Interact 2.1.1 allows remote attackers to inject arbitrary web script or…

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