How severe is CVE-2019-12927?

CVE-2019-12927 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-2019-12927 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-12927?

CVE-2019-12927 affects Mailenable. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-12927?

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

When was CVE-2019-12927 published?

CVE-2019-12927 was published on 2019-07-08 and last updated on 2026-06-17.

CVE-2019-12927

CVE-2019-12927 is a medium-severity vulnerability in Mailenable 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: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mailenable
Published: 2019-07-08
Last modified: 2026-06-17

Description

MailEnable Enterprise Premium 10.23 was vulnerable to stored and reflected cross-site scripting (XSS) attacks. Because the session cookie did not use the HttpOnly flag, it was possible to hijack the session cookie by exploiting this vulnerability.

Frequently asked questions

What is CVE-2019-12927?: MailEnable Enterprise Premium 10.23 was vulnerable to stored and reflected cross-site scripting (XSS) attacks. Because the session cookie did not use the HttpOnly flag, it was possible to hijack the session cookie by exploiting this vulnerability.
How severe is CVE-2019-12927?: CVE-2019-12927 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-2019-12927 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-12927?: CVE-2019-12927 affects Mailenable. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-12927?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-12927 published?: CVE-2019-12927 was published on 2019-07-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mailenable:mailenable:*:*:*:*:enterprise_premium:*:*:*

More vulnerabilities in Mailenable

CVE-2015-9280 — Critical (CVSS 10.0): MailEnable before 8.60 allows XXE via an XML document in the request.aspx Options parameter.
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