How severe is CVE-2006-6786?

CVE-2006-6786 has a CVSS 2.0 base score of 6.5, rated medium severity.

Is CVE-2006-6786 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-6786?

CVE-2006-6786 primarily affects Open Newsletter. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-6786?

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

When was CVE-2006-6786 published?

CVE-2006-6786 was published on 2006-12-28 and last updated on 2026-06-16.

CVE-2006-6786

CVE-2006-6786 is a medium-severity vulnerability in Open Newsletter with a CVSS 2.0 base score of 6.5. 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 6.5)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Open Newsletter
Published: 2006-12-28
Last modified: 2026-06-16

Description

Open Newsletter 2.5 and earlier allows remote authenticated administrators to execute arbitrary PHP code by inserting the code into the email parameter to (1) subscribe.php or (2) unsubscribe.php.

Frequently asked questions

What is CVE-2006-6786?: Open Newsletter 2.5 and earlier allows remote authenticated administrators to execute arbitrary PHP code by inserting the code into the email parameter to (1) subscribe.php or (2) unsubscribe.php.
How severe is CVE-2006-6786?: CVE-2006-6786 has a CVSS 2.0 base score of 6.5, rated medium severity.
Is CVE-2006-6786 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6786?: CVE-2006-6786 primarily affects Open Newsletter. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-6786?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-6786 published?: CVE-2006-6786 was published on 2006-12-28 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:open_newsletter:open_newsletter:*:*:*:*:*:*:*:*
cpe:2.3:a:open_newsletter:open_newsletter:2.0:*:*:*:*:*:*:*

More vulnerabilities in Open Newsletter

CVE-2006-6785 — High (CVSS 7.5): The (1) settings.php and (2) subscribers.php scripts in Open Newsletter 2.5 and earlier do not exit when authentication…
CVE-2007-6301 — Medium (CVSS 4.3): Cross-site scripting (XSS) vulnerability in compose.php in OpenNewsletter 2.5 and earlier allows remote attackers to…

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