CVE-2026-14603Public exploitNetwork attack vector

Unauthenticated opt-in modification via public REST route

Published Jul 24, 2026 · Updated Jul 24, 2026

Broken access control in WPXPO WowOptin before 1.4.38 allows remote attackers to disable forms and insert template rows via REST. The GET /wp-json/optn/v1/recipes/ route uses __return_true as its permission callback, and activate_recipe() trusts query parameters to update every opt-in row and insert a vendor template. No account, nonce, or cookie is required; an active plugin and a configured opt-in let one request stop existing lead-capture forms and render an attacker-selected catalog template.

CVSS severity7.5
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Broken access control in WPXPO WowOptin before 1.4.38 allows remote attackers to disable forms and insert template rows via REST. The GET /wp-json/optn/v1/recipes/ route uses __return_true as its permission callback, and activate_recipe() trusts query parameters to update every opt-in row and insert a vendor template. No account, nonce, or cookie is required; an active plugin and a configured opt-in let one request stop existing lead-capture forms and render an attacker-selected catalog template.

The record

CVE
CVE-2026-14603
Published
Jul 24, 2026
Updated
Jul 24, 2026
Vendor
WPXPO
Product
WowOptin
Classifications
CWE-284, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <1.4.38

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WPXPO · WowOptinversion=0 <1.4.38

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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-284Improper Access Control
T1190Exploit Public-Facing Application

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo