Security readout for executives and security teams
Plain-English summary
Responsive Column Widgets for WordPress has an unauthenticated reflected XSS issue through version 1.2.7. An attacker would need a user to interact with a crafted request or link. Successful exploitation could run script in that user’s browser, risking session data, page manipulation, or follow-on abuse on the affected site.
Executive priority
Treat this as a high-priority WordPress hygiene issue, especially on public sites. It is not evidenced as actively exploited in the provided sources, but the no-auth attack surface and browser-session impact justify prompt inventory and remediation.
Technical view
CVE-2023-47520 is CWE-79 reflected cross-site scripting in Michael Uno's Responsive Column Widgets plugin. CVSS 3.1 is 7.1: network reachable, low complexity, no privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to WordPress sites that have Responsive Column Widgets installed at version 1.2.7 or earlier. Sites not running this plugin are not indicated as affected by the provided sources.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability is still meaningful because unauthenticated reflected XSS often depends on phishing or user interaction, not direct server compromise.
Researcher notes
Evidence is narrow: the bundle identifies the plugin, issue class, affected threshold, CVSS vector, and Patchstack entry. It does not provide root-cause details, vulnerable parameters, proof of exploitation, or a named fixed version, so validation should remain version- and vendor-guidance based.
Mitigation direction
- Inventory WordPress sites for the Responsive Column Widgets plugin and installed version.
- Check Patchstack, vendor, or WordPress plugin guidance for a fixed release or official mitigation.
- Update the plugin if a maintained patched version is available from trusted sources.
- Disable or remove the plugin where no supported fix can be confirmed.
- Prioritize administrator-facing sites and sites with authenticated user sessions.
Validation and detection
- Confirm whether each WordPress instance has responsive-column-widgets installed.
- Record plugin versions and flag version 1.2.7 or earlier for remediation.
- Verify remediation by confirming the plugin is updated, disabled, or removed.
- Review web logs and security tooling for suspicious XSS-related requests without reproducing payloads.
- Confirm no business-critical pages depend on the plugin before removal.
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-2023-47520 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
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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:N/UI:R/S:C/C:L/I:L/A:L2.83.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:N/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.