How severe is CVE-2023-6133?

CVE-2023-6133 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-6133 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-2023-6133?

CVE-2023-6133 affects Incsub Forminator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6133?

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

When was CVE-2023-6133 published?

CVE-2023-6133 was published on 2023-11-15 and last updated on 2026-06-17.

CVE-2023-6133

CVE-2023-6133 is a medium-severity vulnerability in Incsub Forminator with a CVSS 3.x base score of 6.6. 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-434.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Incsub Forminator
Published: 2023-11-15
Last modified: 2026-06-17

Description

The Forminator plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient blacklisting on the 'forminator_allowed_mime_types' function in versions up to, and including, 1.27.0. This makes it possible for authenticated attackers with administrator-level capabilities or above to upload arbitrary files on the affected site's server, but due to the htaccess configuration, remote code cannot be executed.

Frequently asked questions

What is CVE-2023-6133?: The Forminator plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient blacklisting on the 'forminator_allowed_mime_types' function in versions up to, and including, 1.27.0. This makes it possible for authenticated attackers with administrator-level capabilities or above to upload arbitrary files on the affected site's server, but due to the htaccess configuration, remote code cannot be executed.
How severe is CVE-2023-6133?: CVE-2023-6133 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-6133 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-2023-6133?: CVE-2023-6133 affects Incsub Forminator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6133?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-6133 published?: CVE-2023-6133 was published on 2023-11-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:incsub:forminator:*:*:*:*:*:wordpress:*:*

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