CVE-2026-42744Network attack vector

Unauthenticated payment manipulation via unvalidated amount

Published May 27, 2026 · Updated May 27, 2026

Improper quantity validation in WPQuads Quads Ads Manager 3.0.2 and earlier allows remote attackers to alter PayPal payment amounts via requests. The unauthenticated quads_submit_ad_buy_form AJAX action accepts client-controlled ad-sale data without fully validating the PayPal amount; public sources do not identify the specific missing constraint. No account or user interaction is required, and the documented consequence is manipulation of payment-related hidden fields rather than code execution or data disclosure.

CVSS severity6.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper quantity validation in WPQuads Quads Ads Manager 3.0.2 and earlier allows remote attackers to alter PayPal payment amounts via requests. The unauthenticated quads_submit_ad_buy_form AJAX action accepts client-controlled ad-sale data without fully validating the PayPal amount; public sources do not identify the specific missing constraint. No account or user interaction is required, and the documented consequence is manipulation of payment-related hidden fields rather than code execution or data disclosure.

The record

CVE
CVE-2026-42744
Published
May 27, 2026
Updated
May 27, 2026
Vendor
WPQuads
Product
Quads Ads Manager for Google AdSense
Classifications
CWE-1284, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.0.2 changes=[{"at":"3.0.3","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WPQuads · Quads Ads Manager for Google AdSenseversion=0 <=3.0.2 changes=[{"at":"3.0.3","status":"unaffected"}]

Published CVSS scores

6.5PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1284Improper Validation of Specified Quantity in Input
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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