How severe is CVE-2013-1647?

CVE-2013-1647 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2013-1647 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-1647?

CVE-2013-1647 primarily affects Open-xchange Open-xchange Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-1647?

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

When was CVE-2013-1647 published?

CVE-2013-1647 was published on 2013-09-05 and last updated on 2026-06-16.

CVE-2013-1647

CVE-2013-1647 is a medium-severity vulnerability in Open-xchange Open-xchange Server 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. The underlying weakness is classified as CWE-94.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Open-xchange Open-xchange Server
Published: 2013-09-05
Last modified: 2026-06-16

Description

Multiple CRLF injection vulnerabilities in Open-Xchange Server before 6.20.7 rev14, 6.22.0 before rev13, and 6.22.1 before rev14 allow remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted parameter, as demonstrated by (1) the location parameter to ajax/redirect or (2) multiple infostore URIs.

Frequently asked questions

What is CVE-2013-1647?: Multiple CRLF injection vulnerabilities in Open-Xchange Server before 6.20.7 rev14, 6.22.0 before rev13, and 6.22.1 before rev14 allow remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted parameter, as demonstrated by (1) the location parameter to ajax/redirect or (2) multiple infostore URIs.
How severe is CVE-2013-1647?: CVE-2013-1647 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2013-1647 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-1647?: CVE-2013-1647 primarily affects Open-xchange Open-xchange Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-1647?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-1647 published?: CVE-2013-1647 was published on 2013-09-05 and last updated on 2026-06-16.

References

http://archives.neohapsis.com/archives/bugtraq/2013-03/0075.html

Affected products (3)

cpe:2.3:a:open-xchange:open-xchange_server:6.20.7:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_server:6.22.0:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_server:6.22.1:*:*:*:*:*:*:*

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