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CVE-2013-4790· NVD / CVE Program· CNA mitre

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 pred

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.

LowCVSS 3.5 · v2.0—No exploit No fix recorded
Published
Sep 5, 2013
Updated
Jun 16, 2026
EPSS
0.9% · 59th percentile
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Report tools

JSON

Action score

14

Monitor

Low priority for now.

CVSS
14 / 40 · 3.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.9%

Affected systems

VendorProduct
open-xchangeopen-xchange appsuite

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • open-xchange open-xchange appsuite7.0.2
  • open-xchange open-xchange appsuite7.2.0
  • open-xchange open-xchange appsuite7.2.1
  • open-xchange open-xchange appsuite7.2.2

Same product

open-xchange: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-12645OX App Suite 7.10.1 to 7.10.3 has improper input validation for rate limits with a crafted User-Agent header, spoofed vacation notices, and
    39Monitor
  • CVE-2019-7158OX App Suite 7.10.0 and earlier has Incorrect Access Control.
    39Monitor
  • CVE-2017-13667OX Software GmbH OX App Suite 7.8.4 and earlier is affected by: SSRF.
    39Monitor
  • CVE-2017-5212Open-Xchange GmbH OX App Suite 7.8.3 is affected by: Incorrect Access Control.
    39Monitor
  • CVE-2017-5210Open-Xchange GmbH OX App Suite 7.8.3 and earlier is affected by: Information Exposure.
    39Monitor
  • CVE-2017-17060OX Software GmbH OX App Suite 7.8.4 and earlier is affected by: Insecure Permissions.
    39Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

    If successful

    Confidentiality
    P · data can be read
    Integrity
    none
    Availability
    none
    Attack complexity
    M
    Confidentiality impact
    P
    Integrity impact
    None
    Availability impact
    None

    Weakness class (CWE)

    CWE-255 · Credentials Management Errors

    CVSS vector

    AV:N/AC:M/Au:S/C:P/I:N/A:N

    nvd-primary

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    MITRE has no CAPEC/ATT&CK mapping for this CWE.

    Noroxi analysis

    No Noroxi analysis for this record yet

    We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

    We use this product, ask for help

    Change log

    No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

    All records