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CVE-2026-90951

📛 CVE Title

Paid Member Subscriptions < 3.1.0 - Unauthenticated In-Flight Checkout State Deletion via pms_process_payment

⬇ Download JSON

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.

Overview

State
PUBLISHED
Assigner (CNA)
WPScan
CVSS severity
—
CVSS score
—
CVSS vector
—
Effective score
3.7 / 10 LOW source: NVD
CWE(s)
CWE-863 Incorrect Authorization
Reserved
2026-09-14
Published
2026-09-23 06:00 UTC
Last updated
2026-09-23 10:52 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/90xxx/CVE-2026-90951.json

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published
2026-09-23 06:17:05 UTC
NVD last modified
2026-09-23 18:12:32 UTC
NVD CVSS v3.1
CVSS 3.7 / 10 3.7 3.7 / 10 LOW source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Exploitability subscore
2.2 / 10
Impact subscore
1.4 / 10
EPSS score
0.0018 (probability of exploitation in next 30 days)
EPSS percentile
7.86% vs all CVEs — higher = more likely to be exploited, as of 2026-09-23

NVD-assigned CWE(s): CWE-863 (differs from the CNA list above)

NVD / KEV / EPSS data refreshed 2026-09-24 04:31 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID
EUVD-2026-85054
Assigner
WPScan
Published
Sep 23, 2026, 6:00:22 AM
Updated
Sep 23, 2026, 10:52:58 AM
EUVD base score (CVSS 3.1)
3.7 / 10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
EUVD-reported EPSS
0.1800
Vendors
Unknown
Products
Paid Membership Subscriptions (0 <3.1.0)
Aliases
GHSA-rxfw-g454-gj22

ENISA 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.

EUVD references (1)

Affected products (1)
VendorProductVersionsPlatforms
Unknown Paid Membership Subscriptions 0 (affected) —

Vendor references (1)

References embedded in the original CVE record by the assigning CNA.

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (1)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

Remediations (10)

  • Microsoft Update Catalog
    web:catalog.update.microsoft.com

    Welcome to the Microsoft Update Catalog site. We want your feedback! Visit our newsgroup or send us an email to provide us with your thoughts and suggestions. To get started using the site, enter in your search terms in the Search box above or visit our FAQ for search tips. |Newsgroup|Send us your feedback

    2026-09-24 11:47 UTC
  • Always On VPN Security Updates September 2026
    web:directaccess.richardhicks.com

    Microsoft released the September 2026 security updates today, which include numerous fixes affecting Always On VPN deployments. This month's edition addresses vulnerabilities in Windows Server Routing and Remote Access (RRAS), VPN protocols such as Secure Socket Tunneling Protocol (SSTP) and Internet Key Exchange version 2 (IKEv2). The updates also include Active Directory Certificate ...

    2026-09-24 11:47 UTC
  • Security Advisories and Bulletins | Microsoft Learn
    web:learn.microsoft.com

    Learning path Learn how Microsoft supports secure software development as part of a cybersecurity solution - Training Secure software development means integrating security into each phase of your development lifecycle, from requirements analysis to maintenance. Microsoft provides many services that can help you develop more secure code and deploy a more secure application in the cloud. This ...

    2026-09-24 11:47 UTC
  • Security Update Guide - Microsoft
    web:msrc.microsoft.com

    The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

    2026-09-24 11:47 UTC
  • Security Update Guide - Microsoft Security Response Center
    web:msrc.microsoft.com

    Security Update Guide - Microsoft Security Response Center

    2026-09-24 11:47 UTC
  • Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva
    web:senserva.com

    Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

    2026-09-24 11:47 UTC
  • SAP Security Patch Day - June 2026
    web:support.sap.com

    SAP security Patch Day Bulletin This post shares the information on security notes that remediate vulnerabilities discovered in SAP products. SAP strongly recommends that the customer visits the support portal and applies patches on priority to protect their SAP landscape. On 9th of June 2026 , SAP security patch day saw the release of 15 new security notes.

    2026-09-24 11:47 UTC
  • CVE-2026-90951 - WordPress Paid Memberships Plugin Allows…
    web:vulmon.com

    Vulnerability Summary The Paid Membership Subscriptions WordPress plugin, prior to version 3.1.0, has a vulnerability that enables unauthorized users to delete a member's checkout state. This occurs because an unauthenticated payment action is not properly tied to the user making the request, allowing an attacker to use another member's in-flight payment identifier for this purpose.

    2026-09-24 11:47 UTC
  • Microsoft August 2026 Patch Tuesday fixes 400 flaws, 3 zero-days
    web:www.bleepingcomputer.com

    Today is Microsoft's August 2026 Patch Tuesday, and with it comes security updates for a massive 400 flaws, including one actively exploited and two publicly disclosed zero-day vulnerabilities.

    2026-09-24 11:47 UTC
  • Patch Tuesday September 2026: Security Updates & CVE Analysis
    web:zecurit.com

    Get the complete breakdown of Microsoft's September 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

    2026-09-24 11:47 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-90951.json.

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 3.7,
              "baseSeverity": "LOW",
              "confidentialityImpact": "NONE",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-90951",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-23T10:37:55.526356Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-863",
                "description": "CWE-863 Incorrect Authorization",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-23T10:52:58.058Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Paid Membership Subscriptions",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "3.1.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "vuxvinh"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-863 Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-23T06:00:22.140Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "exploit",
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://wpscan.com/vulnerability/bf740af6-3674-461e-83f0-22bd5c5b3378/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Paid Member Subscriptions < 3.1.0 - Unauthenticated In-Flight Checkout State Deletion via pms_process_payment",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2026-90951",
    "datePublished": "2026-09-23T06:00:22.140Z",
    "dateReserved": "2026-09-14T11:46:55.788Z",
    "dateUpdated": "2026-09-23T10:52:58.058Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}