How severe is CVE-2018-20851?

CVE-2018-20851 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-20851 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20851?

CVE-2018-20851 affects Helpy.io Helpy. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20851?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-20851 published?

CVE-2018-20851 was published on 2019-07-10 and last updated on 2026-06-17.

CVE-2018-20851

CVE-2018-20851 is a high-severity vulnerability in Helpy.io Helpy with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Helpy.io Helpy
Published: 2019-07-10
Last modified: 2026-06-17

Description

Helpy before 2.2.0 allows agents to edit admins.

Frequently asked questions

What is CVE-2018-20851?: Helpy before 2.2.0 allows agents to edit admins.
How severe is CVE-2018-20851?: CVE-2018-20851 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-20851 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20851?: CVE-2018-20851 affects Helpy.io Helpy. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20851?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-20851 published?: CVE-2018-20851 was published on 2019-07-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:helpy.io:helpy:*:*:*:*:*:*:*:*

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