How severe is CVE-2020-12679?

CVE-2020-12679 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-2020-12679 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12679?

CVE-2020-12679 primarily affects Mitel Mivoice Connect. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-12679?

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

When was CVE-2020-12679 published?

CVE-2020-12679 was published on 2020-05-07 and last updated on 2026-06-17.

CVE-2020-12679

CVE-2020-12679 is a medium-severity vulnerability in Mitel Mivoice Connect 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% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mitel Mivoice Connect
Published: 2020-05-07
Last modified: 2026-06-17

Description

A reflected cross-site scripting (XSS) vulnerability in the Mitel ShoreTel Conference Web Application 19.50.1000.0 before MiVoice Connect 18.7 SP2 allows remote attackers to inject arbitrary JavaScript and HTML via the PATH_INFO to home.php.

Frequently asked questions

What is CVE-2020-12679?: A reflected cross-site scripting (XSS) vulnerability in the Mitel ShoreTel Conference Web Application 19.50.1000.0 before MiVoice Connect 18.7 SP2 allows remote attackers to inject arbitrary JavaScript and HTML via the PATH_INFO to home.php.
How severe is CVE-2020-12679?: CVE-2020-12679 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-2020-12679 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12679?: CVE-2020-12679 primarily affects Mitel Mivoice Connect. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-12679?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-12679 published?: CVE-2020-12679 was published on 2020-05-07 and last updated on 2026-06-17.

References

https://gist.github.com/kampji/5ade2d15817650a725aa89fa2e6e4752

Affected products (2)

cpe:2.3:a:mitel:mivoice_connect:*:*:*:*:*:*:*:*
cpe:2.3:a:mitel:shoretel_conference_web:19.50.1000.0:*:*:*:*:*:*:*

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