CVE-2025-11835Network attack vector

Unauthorized renewal charges via unchecked payment processing

Published Nov 5, 2025 · Updated Apr 8, 2026

Missing authorization in Cozmoslabs Paid Member Subscriptions 2.16.4 and earlier allows remote attackers to trigger stored auto-renew charges. PMS_AJAX_Checkout_Handler::process_payment() accepts arbitrary member payment requests without capability or member validation. No authentication or user interaction is required, and successful requests can impose renewal charges on other members' stored payment methods.

CVSS severity5.3
Medium
EPSS probability0.22%
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 Cozmoslabs Paid Member Subscriptions 2.16.4 and earlier allows remote attackers to trigger stored auto-renew charges. PMS_AJAX_Checkout_Handler::process_payment() accepts arbitrary member payment requests without capability or member validation. No authentication or user interaction is required, and successful requests can impose renewal charges on other members' stored payment methods.

The record

CVE
CVE-2025-11835
Published
Nov 5, 2025
Updated
Apr 8, 2026
Vendor
Cozmoslabs
Product
Paid Member Subscriptions
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=2.16.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Cozmoslabs · Paid Member Subscriptionsversion=0 <=2.16.4

Published CVSS scores

5.3WordfenceCVSS: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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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