How severe is CVE-2018-9997?

CVE-2018-9997 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-9997 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-9997?

CVE-2018-9997 primarily affects Open-xchange Open-xchange Appsuite. In total, 77 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-9997?

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

When was CVE-2018-9997 published?

CVE-2018-9997 was published on 2018-07-05 and last updated on 2026-06-17.

CVE-2018-9997

CVE-2018-9997 is a medium-severity vulnerability in Open-xchange Open-xchange Appsuite with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Open-xchange Open-xchange Appsuite
Published: 2018-07-05
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in mail compose in Open-Xchange OX App Suite before 7.6.3-rev31, 7.8.x before 7.8.2-rev31, 7.8.3 before 7.8.3-rev41, and 7.8.4 before 7.8.4-rev28 allows remote attackers to inject arbitrary web script or HTML via the data-target attribute in an HTML page with data-toggle gadgets.

Frequently asked questions

What is CVE-2018-9997?: Cross-site scripting (XSS) vulnerability in mail compose in Open-Xchange OX App Suite before 7.6.3-rev31, 7.8.x before 7.8.2-rev31, 7.8.3 before 7.8.3-rev41, and 7.8.4 before 7.8.4-rev28 allows remote attackers to inject arbitrary web script or HTML via the data-target attribute in an HTML page with data-toggle gadgets.
How severe is CVE-2018-9997?: CVE-2018-9997 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-9997 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-9997?: CVE-2018-9997 primarily affects Open-xchange Open-xchange Appsuite. In total, 77 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-9997?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-9997 published?: CVE-2018-9997 was published on 2018-07-05 and last updated on 2026-06-17.

References

Affected products (77)

cpe:2.3:a:open-xchange:open-xchange_appsuite:*:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev14:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev15:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev16:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev17:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev18:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev20:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev22:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev23:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev24:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev25:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev26:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev28:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev29:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev30:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.0:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.2:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev10:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev11:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev12:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev13:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev14:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev15:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev16:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev17:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev18:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev19:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev20:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev21:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev22:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev23:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev24:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev25:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev26:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev27:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev28:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev29:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev30:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.8.3:rev31:*:*:*:*:*:*

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