How severe is CVE-2020-13423?

CVE-2020-13423 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-13423 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13423?

CVE-2020-13423 affects Form Builder For Magento 2 Project Form Builder For Magento 2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-13423?

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

When was CVE-2020-13423 published?

CVE-2020-13423 was published on 2020-06-29 and last updated on 2026-06-17.

CVE-2020-13423

CVE-2020-13423 is a medium-severity vulnerability in Form Builder For Magento 2 Project Form Builder For Magento 2 with a CVSS 3.x base score of 4.8. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Form Builder For Magento 2 Project Form Builder For Magento 2
Published: 2020-06-29
Last modified: 2026-06-17

Description

Form Builder 2.1.0 for Magento has multiple XSS issues that can be exploited against Magento 2 admin accounts via the Current_url or email field, or the User-Agent HTTP header.

Frequently asked questions

What is CVE-2020-13423?: Form Builder 2.1.0 for Magento has multiple XSS issues that can be exploited against Magento 2 admin accounts via the Current_url or email field, or the User-Agent HTTP header.
How severe is CVE-2020-13423?: CVE-2020-13423 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-13423 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13423?: CVE-2020-13423 affects Form Builder For Magento 2 Project Form Builder For Magento 2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-13423?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-13423 published?: CVE-2020-13423 was published on 2020-06-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:form_builder_for_magento_2_project:form_builder_for_magento_2:2.1.0:*:*:*:*:*:*:*

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