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CVE Record

CVE-2026-2363: WP-Members Membership Plugin <= 3.5.5.1 - Authenticated (Contributor+) SQL Injection via 'order_by' Shortcode Attribute

The WP-Members Membership Plugin plugin for WordPress is vulnerable to SQL Injection via the 'order_by' attribute of the [wpmem_user_membership_posts] shortcode in all versions up to, and including, 3.5.5.1. This is due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Contributor-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

MediumCVSS 6.5Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2026-2363 affects the WP-Members Membership Plugin for WordPress up to version 3.5.5.1. A logged-in user with Contributor-level access or higher could abuse a shortcode option to read sensitive database information. This is not known to be actively exploited from the provided sources.

Executive priority

Treat as a timely remediation item for WordPress sites with user-generated content or many contributor accounts. Prioritize higher if the site stores member, customer, or payment-related data in WordPress. No public active exploitation is evidenced in the supplied sources.

Technical view

The flaw is SQL injection in the [wpmem_user_membership_posts] shortcode order_by attribute. Sources attribute it to insufficient escaping and inadequate SQL query preparation. CVSS is 6.5 with low attack complexity, required low privileges, no user interaction, and high confidentiality impact.

Likely exposure

Exposure is likely limited to WordPress sites running WP-Members Membership Plugin version 3.5.5.1 or earlier, especially where untrusted users can obtain Contributor or higher roles or submit content using the affected shortcode.

Exploitation context

The attacker must already have an authenticated Contributor-level or higher account. The provided sources do not show CISA KEV listing or active exploitation. Impact is primarily data confidentiality, not stated integrity or availability damage.

Researcher notes

Review the referenced plugin code around class-wp-members-products.php and changeset 3468716. The issue is categorized as CWE-89. Evidence supports authenticated SQL injection via order_by, but the provided bundle does not include exploit publication or a named fixed version.

Mitigation direction

  • Check vendor and WordPress plugin guidance for a fixed WP-Members release.
  • Upgrade beyond 3.5.5.1 if vendor release notes confirm the fix.
  • Restrict Contributor and higher roles to trusted users only.
  • Review content workflows that allow shortcode use by non-admin users.
  • Monitor database and application logs for suspicious shortcode-related activity.

Validation and detection

  • Inventory all WordPress sites using WP-Members Membership Plugin.
  • Confirm whether installed versions are 3.5.5.1 or earlier.
  • Identify users with Contributor, Author, Editor, or Administrator roles.
  • Search site content for the affected shortcode usage.
  • Verify the vendor fix or referenced code changes are present.
Prepared
Confidence
high
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-89: Database access and collection lookup

Injection into data stores can inform collection, data access, and exfiltration detection reviews. 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.

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description · low confidence lookup

Database behavior lookup

The CVE wording references database injection or access, so collection and exfiltration 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-2026-2363 mapping review

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

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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
4Source 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
6.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N2.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2026-2363Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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
cbutlerjrWP-Members Membership Plugin0unaffected
Weakness

CWE details

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

CWE-89 · source CWE mapping

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.