Security readout for executives and security teams
Plain-English summary
This is a medium-severity CSRF issue in the Ultimate Member WordPress plugin up to version 2.6.0. An attacker would need a logged-in user to interact with attacker-controlled content, potentially causing a low-impact unauthorized action. The provided sources do not describe data theft or service outage.
Executive priority
Treat this as a normal patch-management item, not an emergency, unless affected sites handle sensitive membership workflows or privileged account administration. Prioritize confirming plugin presence and updating affected installations through standard WordPress maintenance.
Technical view
CVE-2023-31216 is CWE-352 in Ultimate Member, package ultimate-member. CVSS 3.1 is 4.3: network reachable, low complexity, no privileges required, user interaction required, unchanged scope, low integrity impact, no confidentiality or availability impact. The bundle names versions <=2.6.0 as vulnerable.
Likely exposure
Exposure is likely limited to WordPress sites running the Ultimate Member plugin at version 2.6.0 or earlier. Sites without this plugin, or with versions not covered by the cited advisory, are not shown as affected by the provided evidence.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. Practical abuse requires social engineering or another path to make an authenticated user perform an unintended browser action.
Researcher notes
Evidence is narrow: the bundle identifies CSRF, affected plugin, CVSS, and Patchstack reference, but not a specific vulnerable endpoint, exploit details, or a named fixed version. Avoid asserting exploitation or impact beyond low integrity impact.
Mitigation direction
- Inventory WordPress sites for the Ultimate Member plugin and installed version.
- If running <=2.6.0, check vendor or WordPress guidance for the fixed release.
- Upgrade or otherwise remediate according to the vendor advisory.
- Reduce unnecessary administrative browsing while remediation is pending.
- Monitor for unexpected Ultimate Member configuration or user-management changes.
Validation and detection
- Confirm whether Ultimate Member is installed on each WordPress instance.
- Record the exact plugin version and compare it with <=2.6.0 exposure.
- Review the vendor/Patchstack advisory for current fixed-version guidance.
- Check administrative audit logs for unexpected state changes.
- Verify CSRF protection expectations after applying the vendor-supported update.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-352: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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 lookupCVE-2023-31216 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.