CVE-2026-65434 yoomoney CVE debrief

Who should care

Users of ЮKassa для WooCommerce plugin versions up to 2.16.1 should be aware of this vulnerability and take necessary actions to mitigate it. This includes administrators, security teams, and operators responsible for maintaining and securing affected systems. Vulnerability management and security teams should review and implement compensating controls to detect and prevent sensitive data exposure.

Technical summary

The CVE-2026-65434 vulnerability is a Subscriber Sensitive Data Exposure issue in the ЮKassa для WooCommerce plugin. The vulnerability has been assigned a CVSS score of 6.5 and a severity of MEDIUM. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. This vulnerability can be exploited by attackers with low privileges and can lead to high confidentiality impacts.

Defensive priority

Medium priority, as the vulnerability has a MEDIUM severity and a CVSS score of 6.5. However, given the potential for sensitive data exposure, defenders should prioritize reviewing and mitigating this vulnerability in affected systems.

Recommended defensive actions

• Update ЮKassa для WooCommerce plugin to a version that is not vulnerable
• Review and monitor plugin usage and configurations
• Implement compensating controls to detect and prevent sensitive data exposure
• Review relevant monitoring, detection, and logs for exposed assets that need extra review
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The vulnerability was reported by [email protected] and has been documented in the NVD database. The CVE record was published on 2026-07-27T15:17:08.620Z and last modified on 2026-07-27T17:46:02.447Z. Evidence is limited to public sources and may not reflect the full scope or impact of the vulnerability. Defenders should verify affected systems and review official advisories for further details.

Official resources