How severe is CVE-2011-4951?

CVE-2011-4951 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2011-4951 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4951?

CVE-2011-4951 primarily affects Egroupware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-4951?

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

When was CVE-2011-4951 published?

CVE-2011-4951 was published on 2012-08-31 and last updated on 2026-06-16.

CVE-2011-4951

CVE-2011-4951 is a medium-severity vulnerability in Egroupware with a CVSS 2.0 base score of 5.8. 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 5.8)
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Egroupware
Published: 2012-08-31
Last modified: 2026-06-16

Description

Open redirect vulnerability in phpgwapi/ntlm/index.php in EGroupware Enterprise Line (EPL) before 11.1.20110804-1 and EGroupware Community Edition before 1.8.001.20110805 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the forward parameter.

Frequently asked questions

What is CVE-2011-4951?: Open redirect vulnerability in phpgwapi/ntlm/index.php in EGroupware Enterprise Line (EPL) before 11.1.20110804-1 and EGroupware Community Edition before 1.8.001.20110805 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the forward parameter.
How severe is CVE-2011-4951?: CVE-2011-4951 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2011-4951 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4951?: CVE-2011-4951 primarily affects Egroupware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-4951?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4951 published?: CVE-2011-4951 was published on 2012-08-31 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:egroupware:egroupware:*:-:community:*:*:*:*:*
cpe:2.3:a:egroupware:egroupware_enterprise_line:*:*:*:*:*:*:*:*

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