Conditional Fields for Contact Form 7 <= 2.7.2 - Unauthenticated Denial of Service

2026-05-04 00:00

Rahul Karne

Strategic Overview

Status

Patched in 2.7.3

Affected PluginConditional Fields for Contact Form 7

Affected Version<= 2.7.2

CVSS5.3Medium

CVECVE-2026-25863

View all Conditional Fields for Contact Form 7 vulnerabilities

Vulnerability Overview

The Conditional Fields for Contact Form 7 plugin for WordPress is vulnerable to Denial of Service in all versions up to, and including, 2.7.2. This makes it possible for unauthenticated attackers to starve the server of resources.

Technical Analysis

REMEDIATION: Update to version 2.7.3, or a newer patched version --- IDENTIFIER: CWE-1284 (Improper Validation of Specified Quantity in Input) The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

External References

https://www.cve.org/CVERecord?id=CVE-2026-25863 https://www.wordfence.com/threat-intel/vulnerabilities/id/773e2c1f-cebb-46b8-a073-98814c274b8f

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityLow

This record contains material that is subject to copyright

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

https://www.cve.org/Legal/TermsOfUse

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/