How severe is CVE-2013-4790?

CVE-2013-4790 has a CVSS 2.0 base score of 3.5, rated low severity.

Is CVE-2013-4790 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4790?

CVE-2013-4790 primarily affects Open-xchange Open-xchange Appsuite. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4790?

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

When was CVE-2013-4790 published?

CVE-2013-4790 was published on 2013-09-05 and last updated on 2026-06-16.

CVE-2013-4790

CVE-2013-4790 is a low-severity vulnerability in Open-xchange Open-xchange Appsuite with a CVSS 2.0 base score of 3.5. 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-255.

Key facts

Severity: Low (CVSS 2.0 base score 3.5)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Open-xchange Open-xchange Appsuite
Published: 2013-09-05
Last modified: 2026-06-16

Description

Open-Xchange AppSuite before 7.0.2 rev14, 7.2.0 before rev11, 7.2.1 before rev10, and 7.2.2 before rev9 relies on user-supplied data to predict the IMAP server hostname for an external domain name, which allows remote authenticated users to discover e-mail credentials of other users in opportunistic circumstances via a manual-mode association of a personal e-mail address with the hostname of a crafted IMAP server.

Frequently asked questions

What is CVE-2013-4790?: Open-Xchange AppSuite before 7.0.2 rev14, 7.2.0 before rev11, 7.2.1 before rev10, and 7.2.2 before rev9 relies on user-supplied data to predict the IMAP server hostname for an external domain name, which allows remote authenticated users to discover e-mail credentials of other users in opportunistic circumstances via a manual-mode association of a personal e-mail address with the hostname of a crafted IMAP server.
How severe is CVE-2013-4790?: CVE-2013-4790 has a CVSS 2.0 base score of 3.5, rated low severity.
Is CVE-2013-4790 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4790?: CVE-2013-4790 primarily affects Open-xchange Open-xchange Appsuite. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4790?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4790 published?: CVE-2013-4790 was published on 2013-09-05 and last updated on 2026-06-16.

References

http://archives.neohapsis.com/archives/bugtraq/2013-07/0204.html

Affected products (4)

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.0.2:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.2.0:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.2.1:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.2.2:*:*:*:*:*:*:*

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