Security readout for executives and security teams
Plain-English summary
A WordPress site using W4 Post List may let a contributor-level user store malicious script content. That script could run when another user views affected content, creating account and site-management risk. The bundle does not name active exploitation or a confirmed fixed version.
Executive priority
Treat as a moderate web-application risk. Prioritize internet-facing WordPress sites with many contributors, delegated publishing workflows, or administrator users likely to view contributor-created content.
Technical view
CVE-2023-27413 is an authenticated contributor-or-higher stored XSS in Shazzad Hossain Khan W4 Post List, reported for versions up to 2.4.4. It is CWE-79 with CVSS 3.1 score 6.5, requiring low privileges and user interaction with changed scope.
Likely exposure
Exposure is likely limited to WordPress installations that have W4 Post List installed at a vulnerable version and allow contributor-or-higher accounts. Sites without the plugin, without untrusted contributors, or running a vendor-confirmed unaffected version are less exposed.
Exploitation context
The source bundle marks KEV as false and provides no cited evidence of active exploitation. The issue is still meaningful because stored XSS can persist in site content and affect administrators or visitors who view the affected output.
Researcher notes
Evidence identifies authenticated stored XSS but does not include sink details, payloads, exploitation reports, or a definitive fixed version in the provided bundle. Validation should remain non-destructive and focus on version, role exposure, and vendor-confirmed remediation.
Mitigation direction
- Inventory WordPress sites for the W4 Post List plugin and recorded version.
- Check vendor, WordPress plugin, CVE, or Patchstack guidance for a fixed release.
- Disable or remove the plugin where it is not business-required.
- Limit contributor-or-higher access to trusted users until remediation is confirmed.
- Review suspicious content created by contributor-level users.
Validation and detection
- Confirm whether W4 Post List is installed on each WordPress property.
- Compare installed versions against the reported vulnerable range up to 2.4.4.
- Review WordPress roles for contributor-or-higher accounts with plugin content access.
- Check security logs for suspicious edits to plugin-managed post lists.
- Verify remediation against vendor or Patchstack guidance, not assumptions.
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-79: 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-2023-27413 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
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:L/UI:R/S:C/C:L/I:L/A:L2.33.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.