How severe is CVE-2009-4834?

CVE-2009-4834 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2009-4834 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4834?

CVE-2009-4834 affects Xpressengine Zeroboard. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-4834?

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

When was CVE-2009-4834 published?

CVE-2009-4834 was published on 2010-05-04 and last updated on 2026-06-16.

CVE-2009-4834

CVE-2009-4834 is a medium-severity vulnerability in Xpressengine Zeroboard with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Xpressengine Zeroboard
Published: 2010-05-04
Last modified: 2026-06-16

Description

lib.php in Zeroboard 4.1 pl7 allows remote attackers to execute arbitrary PHP code via a crafted parameter name, possibly related to now_connect.php.

Frequently asked questions

What is CVE-2009-4834?: lib.php in Zeroboard 4.1 pl7 allows remote attackers to execute arbitrary PHP code via a crafted parameter name, possibly related to now_connect.php.
How severe is CVE-2009-4834?: CVE-2009-4834 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2009-4834 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4834?: CVE-2009-4834 affects Xpressengine Zeroboard. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-4834?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-4834 published?: CVE-2009-4834 was published on 2010-05-04 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:xpressengine:zeroboard:4.1:pl7:*:*:*:*:*:*

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