Security readout for executives and security teams
Plain-English summary
An unauthenticated attacker may reset any WordPress user’s password, including an administrator’s, on sites running MemberDash through version 1.8.5. Successful abuse could give the attacker full site control without notifying the victim.
Executive priority
Treat as an emergency for internet-accessible sites running MemberDash 1.8.5 or earlier. Rapidly inventory, contain, and follow vendor remediation guidance because successful exploitation may enable silent administrator takeover and complete website compromise.
Technical view
MemberDash reportedly fails to validate that a user-controlled id parameter belongs to the person registering. This CWE-639 insecure direct object reference allows unauthenticated password changes for arbitrary WordPress accounts. The supplied CVSS 3.1 score is 9.8 because exploitation is remote, low-complexity, requires no privileges or user interaction, and may compromise confidentiality, integrity, and availability.
Likely exposure
WordPress sites using MemberDash 1.8.5 or earlier are potentially exposed, particularly where the affected registration functionality is reachable from the internet. The bundle does not identify required configuration, reliable inventory indicators, or affected endpoint details.
Exploitation context
The described flaw is remotely exploitable without authentication or victim interaction. However, the CVE is not listed as KEV in the supplied bundle, and no supplied source confirms active exploitation, public proof-of-concept availability, or observed attacks.
Researcher notes
The narrative states all versions through 1.8.5 are affected, but the structured affected entry lists version "0" with defaultStatus "unaffected." Treat the narrative range as the working indicator while confirming vendor data. No patch version, endpoint, exploit evidence, or compromise indicators are supplied; avoid active testing against production.
Mitigation direction
- Identify all WordPress sites running MemberDash and record installed versions.
- Check LearnDash or MemberDash guidance for a confirmed fixed release or vendor mitigation.
- Prioritize updating vulnerable installations after validating the vendor-provided release.
- If no fix is available, disable MemberDash or restrict affected registration access where operationally acceptable.
- Reset affected credentials and review administrator accounts if compromise is suspected.
Validation and detection
- Confirm MemberDash is absent or newer than the vendor-confirmed affected range.
- Verify the installed release against current LearnDash or MemberDash security guidance.
- Review recent password changes, new administrators, and unexpected privilege modifications.
- Check authentication and application logs for suspicious unauthenticated registration activity.
- Confirm legitimate administrators retain expected email addresses, roles, and recovery settings.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-639: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-16310 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9WordfenceVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Source timelineWordfence
Disclosed
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/222e0f27-f269-4751-9544-1a6cb03ab3a7?source=cveCVE reference, Wordfence
- https://www.memberdashwp.com/CVE reference, Wordfence
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Authorization Bypass Through User-Controlled Key
Authorization Bypass Through User-Controlled Key represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.