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CVE Record

CVE-2026-1650: MDJM Event Management <= 1.7.8.1 - Missing Authorization to Unauthenticated Arbitrary Custom Event Field Deletion

The MDJM Event Management plugin for WordPress is vulnerable to unauthorized data modification due to a missing capability check on the 'custom_fields_controller' function in all versions up to, and including, 1.7.8.1. This makes it possible for unauthenticated attackers to delete arbitrary custom event fields via the 'delete_custom_field' and 'id' parameters.

MediumCVSS 5.3Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2026-1650 affects the MDJM Event Management WordPress plugin. An unauthenticated attacker could delete custom event fields, potentially disrupting event data workflows. The issue is integrity-focused, not a data theft or full site takeover vulnerability based on available sources.

Executive priority

Treat as a moderate-priority WordPress plugin issue. Prioritize sites using MDJM for active event operations, because deleted custom fields can disrupt business workflows. It is less urgent than remote code execution or credential theft, but should not wait for routine quarterly patching.

Technical view

The vulnerability is a missing authorization check (CWE-862) in the plugin’s custom_fields_controller function. Versions up to and including 1.7.8.1 are described as affected. CVSS is 5.3, network exploitable, low complexity, no privileges or user interaction required, with low integrity impact.

Likely exposure

Public WordPress sites running MDJM Event Management versions up to and including 1.7.8.1 are the likely exposure. Sites not using this plugin are not affected. Source metadata contains some version-field inconsistency, so confirm against the plugin inventory and advisory text.

Exploitation context

No CISA KEV listing is reported in the provided bundle, and no cited source states active exploitation. The issue can be triggered remotely without authentication, but the documented impact is limited to deletion of arbitrary custom event fields.

Researcher notes

The CVE description and Wordfence identify missing authorization in custom_fields_controller affecting versions through 1.7.8.1. The CVE affected-version object appears inconsistent, listing version “0” with default unaffected. Use advisory text, plugin code references, and repository changeset to validate scope.

Mitigation direction

  • Check vendor and WordPress plugin guidance for a release newer than 1.7.8.1.
  • Update the MDJM Event Management plugin if a fixed version is available.
  • If no fix is available, consider disabling the plugin temporarily.
  • Back up event configuration and custom field data before remediation.
  • Restore missing custom event fields from known-good backups if needed.

Validation and detection

  • Inventory WordPress sites for the MDJM Event Management plugin.
  • Confirm installed plugin versions, prioritizing versions up to 1.7.8.1.
  • Review event custom fields for unexpected deletion or configuration changes.
  • Check web and WordPress logs for suspicious unauthenticated requests to plugin admin functionality.
  • Monitor Wordfence, CVE, and WordPress plugin repository updates.
Prepared
Confidence
medium
Sources
6

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 · medium confidence lookup

CWE-862: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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-2026-1650 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
Medium
CVSS
5.3 (3.1)
Known Exploited
No
Published

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

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
0Timeline events
0ADP providers
5Source links

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
5.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.3Medium
CVSS 3.1 vector shape for CVE-2026-1650Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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

Products and packages named in the record

VendorProductVersion / packageStatus
mdjmMDJM Event Management0unaffected
Weakness

CWE details

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

CWE-862 · source CWE mapping

Missing Authorization

Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.