CVE-2026-4986Public exploitNetwork attack vector

Payment-state manipulation via unsigned PayPal webhooks

Published Jun 9, 2026 · Updated Jun 9, 2026

Missing authorization in WPForms Lite before 1.10.0.5 allows remote attackers to alter transaction payment states via forged PayPal webhooks. The PayPal Commerce webhook route accepts unauthenticated JSON, checks only an event-type allowlist, and dispatches attacker-controlled resource data without authenticating the event as PayPal-originated. The route is reachable when PayPal Commerce is connected and webhooks are enabled; a forged event can overwrite the state of a matching transaction.

CVSS severity5.3
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in WPForms Lite before 1.10.0.5 allows remote attackers to alter transaction payment states via forged PayPal webhooks. The PayPal Commerce webhook route accepts unauthenticated JSON, checks only an event-type allowlist, and dispatches attacker-controlled resource data without authenticating the event as PayPal-originated. The route is reachable when PayPal Commerce is connected and webhooks are enabled; a forged event can overwrite the state of a matching transaction.

The record

CVE
CVE-2026-4986
Published
Jun 9, 2026
Updated
Jun 9, 2026
Vendor
WPForms
Product
WPForms Lite
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 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=1.10.0.1 <1.10.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WPForms · WPForms Liteversion=1.10.0.1 <1.10.0.5

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.001Stored Data Manipulation

Public exploit references

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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