CVE-2026-90951: CWE-863 Incorrect Authorization in Paid Membership Subscriptions
The Paid Membership Subscriptions WordPress plugin before 3.1.0 does not bind one of its unauthenticated payment actions to the requesting user, allowing someone who holds another member's in-flight payment identifier to delete that member's checkout state.
AI Analysis
Technical Summary
CVE-2026-90951 is an incorrect authorization vulnerability (CWE-863) in the Paid Membership Subscriptions WordPress plugin versions prior to 3.1.0. The flaw arises from the plugin's failure to bind an unauthenticated payment action to the user initiating the request. Consequently, an attacker who obtains another member's in-flight payment identifier can delete that member's checkout state, potentially disrupting their payment process.
Potential Impact
An attacker with knowledge of another member's in-flight payment identifier can delete that member's checkout state, which may cause disruption or denial of service to the legitimate user's payment process. There is no indication of further privilege escalation or data disclosure from the provided information.
Mitigation Recommendations
Upgrade the Paid Membership Subscriptions plugin to version 3.1.0 or later, where this authorization issue has been fixed. No other mitigation steps are indicated.
CVE-2026-90951: CWE-863 Incorrect Authorization in Paid Membership Subscriptions
Description
The Paid Membership Subscriptions WordPress plugin before 3.1.0 does not bind one of its unauthenticated payment actions to the requesting user, allowing someone who holds another member's in-flight payment identifier to delete that member's checkout state.
CVSS v3.1
Score 3.7low
Affected software
Paid Membership Subscriptions
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-90951 is an incorrect authorization vulnerability (CWE-863) in the Paid Membership Subscriptions WordPress plugin versions prior to 3.1.0. The flaw arises from the plugin's failure to bind an unauthenticated payment action to the user initiating the request. Consequently, an attacker who obtains another member's in-flight payment identifier can delete that member's checkout state, potentially disrupting their payment process.
Potential Impact
An attacker with knowledge of another member's in-flight payment identifier can delete that member's checkout state, which may cause disruption or denial of service to the legitimate user's payment process. There is no indication of further privilege escalation or data disclosure from the provided information.
Mitigation Recommendations
Upgrade the Paid Membership Subscriptions plugin to version 3.1.0 or later, where this authorization issue has been fixed. No other mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-14T11:46:55.788Z
- State
- PUBLISHED
Threat ID: 6ab36d43f7a7c541065abccb
Added to database: 09/23/2026, 06:10:11 UTC
Last enriched: 09/23/2026, 06:18:16 UTC
Last updated: 09/24/2026, 01:57:05 UTC
Views: 10
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.