CVE-2026-65434Network attack vector

Subscriber access to sensitive data

Published Jul 27, 2026 · Updated Jul 27, 2026

Sensitive data exposure in YooMoney YooKassa for WooCommerce 2.16.1 and earlier allows remote authenticated users to read sensitive data. Public records do not identify the affected endpoint or function, the exposed fields, or the operation that returns them without sufficient authorization. Subscriber-level access is required, and the reported impact is limited to disclosure with no data modification or service interruption.

CVSS severity6.5
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive data exposure in YooMoney YooKassa for WooCommerce 2.16.1 and earlier allows remote authenticated users to read sensitive data. Public records do not identify the affected endpoint or function, the exposed fields, or the operation that returns them without sufficient authorization. Subscriber-level access is required, and the reported impact is limited to disclosure with no data modification or service interruption.

The record

CVE
CVE-2026-65434
Published
Jul 27, 2026
Updated
Jul 27, 2026
Vendor
YooMoney
Product
YooKassa for WooCommerce
Classifications
CWE-201, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 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=n/a <=2.16.1 changes=[{"at":"2.16.2","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

YooMoney · YooKassa for WooCommerceversion=n/a <=2.16.1 changes=[{"at":"2.16.2","status":"unaffected"}]

Published CVSS scores

6.5PatchstackCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-201Insertion of Sensitive Information Into Sent Data
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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