How severe is CVE-2018-7703?

CVE-2018-7703 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-2018-7703 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7703?

CVE-2018-7703 affects Securenvoy Securmail. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-7703?

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

When was CVE-2018-7703 published?

CVE-2018-7703 was published on 2018-03-15 and last updated on 2026-06-17.

CVE-2018-7703

CVE-2018-7703 is a medium-severity vulnerability in Securenvoy Securmail 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: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Securenvoy Securmail
Published: 2018-03-15
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in SecurEnvoy SecurMail before 9.2.501 allows remote attackers to inject arbitrary web script or HTML via the mailboxid parameter to secmail/getmessage.exe.

Frequently asked questions

What is CVE-2018-7703?: Cross-site scripting (XSS) vulnerability in SecurEnvoy SecurMail before 9.2.501 allows remote attackers to inject arbitrary web script or HTML via the mailboxid parameter to secmail/getmessage.exe.
How severe is CVE-2018-7703?: CVE-2018-7703 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-2018-7703 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7703?: CVE-2018-7703 affects Securenvoy Securmail. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-7703?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-7703 published?: CVE-2018-7703 was published on 2018-03-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:securenvoy:securmail:*:*:*:*:*:*:*:*

More vulnerabilities in Securenvoy Securmail

CVE-2018-7702 — Critical (CVSS 9.1): SecurEnvoy SecurMail before 9.2.501 allows remote attackers to spoof transmission of arbitrary e-mail messages, resend…
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CVE-2018-7705 — High (CVSS 8.1): Directory traversal vulnerability in SecurEnvoy SecurMail before 9.2.501 allows remote authenticated users to read…
CVE-2018-7706 — Medium (CVSS 6.5): Directory traversal vulnerability in SecurEnvoy SecurMail before 9.2.501 allows remote authenticated users to read…
CVE-2018-7704 — Medium (CVSS 6.5): SecurEnvoy SecurMail before 9.2.501 allows remote authenticated users to read arbitrary e-mail messages via the option1…
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