CVE-2023-28782 HIGH

CVE-2023-28782: WordPress Gravity Forms Plugin <= 2.7.3 is vulnerable to PHP Object Injection

Vendor Rocketgenius Inc.

Product Gravity Forms

Weakness CWE-502 · Unsafe deserialization

Published December 20, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

8.3/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality Low

Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in Rocketgenius Inc. Gravity Forms.This issue affects Gravity Forms: from n/a through 2.7.3.

Explanation of Vulnerability in Simple Terms

02Summary

Gravity Forms versions up to 2.7.3 contain a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary code on the site. The vulnerability exists in how the plugin processes untrusted serialized data without proper validation. An attacker can exploit this remotely without user interaction to compromise the site's confidentiality, integrity, and availability.

What an attacker can do

03Attacker Capabilities

Run arbitrary code on the site and access or modify data without authentication.

Potential impact on your site

04Site Impact

Complete site compromise possible: attackers can steal data, modify content, or take the site offline.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required.

Key dates

06Disclosure timeline

December 20, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-28782 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/502.html AskarLabs — CWE-502 write-up Deserialization of Untrusted Data

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