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CVE Record

CVE-2026-74001: WordPress User Registration & Membership Pro plugin <= 5.4.5 - Account Takeover vulnerability

Unauthenticated Broken Authentication in User Registration & Membership Pro <= 5.4.5 versions.

CriticalCVSS 9.8Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

A flaw in the WordPress User Registration & Membership Pro plugin could let an unauthenticated internet attacker take over accounts. Successful compromise could expose data, permit unauthorized changes, and disrupt affected sites. The supplied record identifies versions through 5.4.5 as vulnerable.

Executive priority

Treat this as an immediate investigation and remediation priority for public WordPress sites. The potential for unauthenticated account takeover and full-impact compromise justifies urgent inventory, vendor-guidance review, updating, and focused account auditing.

Technical view

CVE-2026-74001 is an unauthenticated broken-authentication vulnerability, classified as CWE-288. Its CVSS 3.1 score is 9.8, reflecting remote, low-complexity exploitation without privileges or user interaction, with potentially high confidentiality, integrity, and availability impact.

Likely exposure

Internet-accessible WordPress sites running User Registration & Membership Pro version 5.4.5 or earlier are the primary concern. Actual exposure depends on installed version and plugin activation. The structured affected-product data is incomplete and inconsistently lists the default status as unaffected.

Exploitation context

The supplied sources do not establish active exploitation, and the CVE is not identified as being in KEV. This does not prove exploitation is absent. No exploit mechanics should be inferred from the CVSS assessment alone.

Researcher notes

The public bundle attributes the issue to broken authentication and CWE-288 but provides no root-cause details, attack preconditions beyond unauthenticated access, fixed version, or confirmed exploitation. The title and description specify versions through 5.4.5, while the affected array reports versions as unavailable and default status as unaffected.

Mitigation direction

  • Inventory WordPress sites and identify installations running version 5.4.5 or earlier.
  • Check WPEverest and Patchstack guidance for a confirmed fixed release or vendor-approved mitigation.
  • Apply the confirmed vendor update promptly after appropriate testing.
  • If remediation is unavailable, consider disabling the affected plugin until vendor guidance is available.
  • Restrict administrative access and monitor account changes while remediation is pending.

Validation and detection

  • Confirm the installed plugin version and whether the plugin is active on every WordPress site.
  • Verify the deployed release is outside the vendor-confirmed affected range.
  • Review user and administrator accounts for unexpected additions, role changes, or password resets.
  • Inspect authentication and administrative logs for unexplained activity around affected sites.
  • Recheck vendor guidance because the supplied structured version data is incomplete.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · low confidence lookup

CWE-288: 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 lookup
cve · low confidence lookup

CVE-2026-74001 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: total

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Patchstack

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2026-74001Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
WPEverestUser Registration & Membership Pron/aunaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-288 · source CWE mapping

Authentication Bypass Using an Alternate Path or Channel

Authentication Bypass Using an Alternate Path or Channel represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.