CVE-2020-22276

WeForms <= 1.4.7 - CSV injection via form entry

2020-08-13 00:00

Strategic Overview

Status: Patched in 1.4.8
Affected Plugin: weForms – Easy Drag & Drop Contact Form Builder For WordPress
Affected Version: <= 1.4.7
CVSS: 8.6High
Weakness type: CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CVE: CVE-2020-22276

View all weForms – Easy Drag & Drop Contact Form Builder For WordPress vulnerabilities

At a glance

CVE-2020-22276 is a high-severity Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the weForms WordPress plugin, affecting versions <= 1.4.7. It carries a CVSS score of 8.6 (low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 1.4.8; sites on affected versions should update now. Disclosed August 2020, reported by Mohamad Pishdar.

Vulnerability Overview

WeForms Wordpress Plugin 1.4.7 allows CSV injection via a form's entry.

Technical Analysis

The vector marks this flaw as requiring local or adjacent access, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Remediation

Update to version 1.4.8, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to weForms: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: weForms 1.4.8 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2020-22276 https://www.wordfence.com/threat-intel/vulnerabilities/id/53bffb82-b9df-40a0-947b-ecae512f363a https://nvd.nist.gov/vuln/detail/CVE-2020-22276

Related records

Other vulnerabilities in weForms – Easy Drag & Drop Contact Form Builder For WordPress

CVSS Vector

8.6

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

Base

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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/