Security readout for executives and security teams
Plain-English summary
This vulnerability affects the WordPress Better RSS Widget plugin up to 2.8.1. It can allow cross-site scripting, meaning attacker-controlled content may run in another user's browser. The published score is medium, but business urgency depends on whether the plugin is installed on externally reachable WordPress sites and who can supply affected input.
Executive priority
Treat as a moderate web application risk. Prioritize internet-facing WordPress sites and environments with multiple content administrators. This is not KEV-backed emergency work, but unresolved XSS can affect user trust, session security, and site integrity.
Technical view
CVE-2023-47813 is a CWE-79 improper input neutralization issue in grandslambert Better RSS Widget. CVSS 3.1 is 6.5 with network access, low complexity, low privileges, required user interaction, and changed scope. The bundle does not identify the exact vulnerable parameter, exploit path, or fixed version.
Likely exposure
Exposure is likely limited to WordPress sites running Better RSS Widget version 2.8.1 or earlier. The CVSS vector indicates exploitation requires low privileges and user interaction, so anonymous mass compromise is not supported by the provided evidence.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. It supports an authenticated, interaction-dependent XSS risk, not confirmed exploitation in the wild. No exploit details are provided and none should be inferred.
Researcher notes
The public bundle is sparse. It gives CWE-79, CVSS, plugin name, and affected range, but not the sink, source, capability requirement, or patch status. Avoid claiming stored versus reflected XSS unless confirmed by vendor or Patchstack details.
Mitigation direction
- Inventory WordPress sites for Better RSS Widget and installed version.
- Check vendor, WordPress plugin, and Patchstack guidance for a confirmed fixed release.
- Disable or remove the plugin if affected and no trusted fix is available.
- Restrict plugin administration to trusted accounts until remediation is confirmed.
- Review browser-side hardening such as CSP as a compensating control.
Validation and detection
- Confirm whether Better RSS Widget is installed on each WordPress instance.
- Record plugin version and compare against the affected range, <= 2.8.1.
- Review Patchstack and CVE records for updated fix or mitigation details.
- Check recent plugin-related content changes for unexpected script-like markup.
- Verify remediation by confirming the plugin is updated, disabled, or removed.
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-2023-47813 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.