How severe is CVE-2020-7947?

CVE-2020-7947 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-7947 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7947?

CVE-2020-7947 affects Auth0 Login By Auth0. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-7947?

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

When was CVE-2020-7947 published?

CVE-2020-7947 was published on 2020-04-01 and last updated on 2026-06-17.

CVE-2020-7947

CVE-2020-7947 is a critical-severity vulnerability in Auth0 Login By Auth0 with a CVSS 3.x base score of 9.8. 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-1236.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1236
Affected product: Auth0 Login By Auth0
Published: 2020-04-01
Last modified: 2026-06-17

Description

An issue was discovered in the Login by Auth0 plugin before 4.0.0 for WordPress. It has numerous fields that can contain data that is pulled from different sources. One issue with this is that the data isn't sanitized, and no input validation is performed, before the exporting of the user data. This can lead to (at least) CSV injection if a crafted Excel document is uploaded.

Frequently asked questions

What is CVE-2020-7947?: An issue was discovered in the Login by Auth0 plugin before 4.0.0 for WordPress. It has numerous fields that can contain data that is pulled from different sources. One issue with this is that the data isn't sanitized, and no input validation is performed, before the exporting of the user data. This can lead to (at least) CSV injection if a crafted Excel document is uploaded.
How severe is CVE-2020-7947?: CVE-2020-7947 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-7947 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7947?: CVE-2020-7947 affects Auth0 Login By Auth0. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-7947?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-7947 published?: CVE-2020-7947 was published on 2020-04-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:auth0:login_by_auth0:*:*:*:*:*:wordpress:*:*

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