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CVE Record

CVE-2023-51526: WordPress Simple Staff List plugin <= 2.2.4 - Broken Access Control vulnerability

Missing Authorization vulnerability in Brett Shumaker Simple Staff List.This issue affects Simple Staff List: from n/a through 2.2.4.

MediumCVSS 4.3Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This CVE is a broken access control issue in the WordPress Simple Staff List plugin through version 2.2.4. A logged-in user could access information they should not be authorized to see. The published impact is limited to confidentiality, with no cited integrity or availability impact.

Executive priority

Treat this as a moderate-priority WordPress exposure. It is not currently supported as actively exploited in the provided sources, but affected internet-facing sites with many user accounts should be checked promptly.

Technical view

CVE-2023-51526 is a CWE-862 Missing Authorization vulnerability affecting Brett Shumaker Simple Staff List up to 2.2.4. The CVSS 3.1 vector is AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N, indicating network reachability, low complexity, required low privileges, and limited information disclosure impact.

Likely exposure

Exposure is likely limited to WordPress sites running Simple Staff List version 2.2.4 or earlier, especially where low-privilege authenticated users exist. The source bundle does not identify affected endpoints, roles, or a fixed version.

Exploitation context

The CVE is not listed as KEV in the provided bundle, and no cited source states active exploitation. The score reflects authenticated, low-complexity access to unauthorized information, not unauthenticated compromise or site takeover.

Researcher notes

The public bundle provides the affected product, range, CWE, and CVSS vector, but not endpoint detail, proof-of-concept status, fixed version, or concrete remediation. Avoid assuming exploitability beyond authenticated unauthorized information access.

Mitigation direction

  • Inventory WordPress sites for Simple Staff List installations through version 2.2.4.
  • Check vendor, WordPress plugin, or Patchstack guidance for a fixed release or workaround.
  • Reduce unnecessary low-privilege WordPress accounts on affected sites.
  • Disable the plugin where it is not business-critical until guidance is confirmed.

Validation and detection

  • Confirm installed Simple Staff List versions across managed WordPress sites.
  • Review whether affected sites allow untrusted authenticated users.
  • Check WordPress audit logs for unusual staff-list-related access by low-privilege users.
  • Verify any applied update or workaround against vendor or Patchstack guidance.
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
cve · low confidence lookup

CVE-2023-51526 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
4.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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
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
4.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.3Medium
CVSS 3.1 vector shape for CVE-2023-51526Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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
Brett ShumakerSimple Staff Listsimple-staff-list, 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.