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CVE-2025-12974

Gravity Forms <= 2.9.21.1 - Unauthenticated Arbitrary File Upload via Legacy Chunked Upload

Published: Nov 18, 2025Updated: Nov 18, 2025 Sources: CVE List NVDCWE-434
8.1HIGH
NVD MITRE
EPSS Score
0.7%
Top 50.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Nuclei

Description

The Gravity Forms plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the legacy chunked upload mechanism in all versions up to, and including, 2.9.21.1. This is due to the extension blacklist not including .phar files, which can be uploaded through the chunked upload mechanism. This makes it possible for unauthenticated attackers to upload executable .phar files and achieve remote code execution on the server, granted they can discover or enumerate the upload path. In order for an attacker to achieve RCE, the web server needs to be set up to process .phar file as PHP via file handler mapping or similar.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-434

Affected Products

Gravity Forms
commercialaka gravity forms webhooks, gravityforms
Gravity FormsMixed
Web & CMS Plugins / wordpress-plugin

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques
Command and Control
Initial Access
Persistence
View detailed technique mapping

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/b6395439-da45-4b64-8e30-b106dffd46c1?source=cve
wordfence.com
https://github.com/pronamic/gravityforms/blob/06de1b7e169e4f073e9d0d491e17b89365b48c20/includes/upload.php#L97
github.com
https://github.com/pronamic/gravityforms/blob/06de1b7e169e4f073e9d0d491e17b89365b48c20/common/common.php#L4178
github.com
and 1 more references View all →

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