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CVE Record

CVE-2023-51515: WordPress Uncode Core plugin <= 2.8.8 - Privilege Escalation vulnerability

Missing Authorization vulnerability in Undsgn Uncode Core allows Privilege Escalation.This issue affects Uncode Core: from n/a through 2.8.8.

HighCVSS 8.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2023-51515 affects the WordPress Uncode Core plugin through version 2.8.8. A missing authorization check can let a logged-in, low-privileged user escalate privileges. For businesses, the concern is unauthorized administrative control of a WordPress site, with potential content, data, and availability impact.

Executive priority

Treat this as a high-priority WordPress remediation item. It is not confirmed as actively exploited in the supplied sources, but successful abuse could give an attacker elevated control of a public website. Prioritize externally reachable sites and sites allowing user registration.

Technical view

The CVE describes CWE-862 Missing Authorization in Undsgn Uncode Core, package name uncode-core. CVSS 3.1 is 8.8 with network access, low complexity, low privileges required, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact. The provided bundle does not name a fixed version.

Likely exposure

Exposure is most likely on WordPress sites running Uncode Core version 2.8.8 or earlier, especially where untrusted users can authenticate with low-privileged accounts. Sites without the plugin, or running a confirmed unaffected version, are not indicated as affected by the supplied sources.

Exploitation context

The source bundle does not show CISA KEV listing, and no cited source in the bundle states active exploitation. The vulnerability is still serious because it is network-reachable, low complexity, requires only low privileges, and can affect all major security properties.

Researcher notes

Evidence is limited to the CVE record, CVE List JSON, and Patchstack reference. The bundle identifies affected versions through 2.8.8 and CWE-862, but does not provide endpoint details, a fixed version, proof of exploitation, or vendor mitigation text.

Mitigation direction

  • Inventory WordPress sites for the Uncode Core plugin and recorded version.
  • Check Undsgn or Patchstack guidance for the fixed or unaffected release.
  • Update, remove, or disable affected plugin versions according to vendor guidance.
  • Restrict unnecessary low-privileged account creation until exposure is resolved.
  • Review WordPress admin users and role changes for suspicious additions.

Validation and detection

  • Confirm no production site runs Uncode Core version 2.8.8 or earlier.
  • Verify the installed plugin version against vendor or Patchstack advisories.
  • Review recent WordPress users, roles, and administrator account changes.
  • Check web and application logs for unusual authenticated plugin activity.
  • Document affected sites, remediation status, and remaining exceptions.
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 · 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
description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2023-51515 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
High
CVSS
8.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/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
0Timeline events
0ADP providers
2Source 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
8.8CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.8High
CVSS 3.1 vector shape for CVE-2023-51515Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/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
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
UndsgnUncode Coreuncode-core, n/aunaffected
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.