Security readout for executives and security teams
Plain-English summary
A WordPress plugin used for sliders, Averta Master Slider Pro, is reported vulnerable to unauthenticated reflected XSS in versions up to 3.6.5. An attacker would still need a victim to interact with malicious content, but successful exploitation could run script in the victim’s browser under the affected site context.
Executive priority
Treat this as a high-priority plugin exposure review for WordPress estates, especially public marketing sites. It is not confirmed as actively exploited in the provided sources, but unauthenticated reflected XSS can create meaningful account, brand, and customer-session risk.
Technical view
CVE-2023-47508 is a CWE-79 reflected cross-site scripting issue in Master Slider Pro <= 3.6.5. CVSS 3.1 is 7.1 with network access, low complexity, no privileges required, and user interaction required. The source bundle does not name a fixed version or detailed remediation.
Likely exposure
Exposure is likely limited to WordPress sites running Averta Master Slider Pro at version 3.6.5 or earlier. Public-facing sites have higher practical risk because reflected XSS can be triggered remotely when a victim interacts with attacker-controlled content.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. The vulnerability is unauthenticated and remotely reachable by category, but exploitation requires user interaction. No exploit details are provided in the source bundle.
Researcher notes
Evidence is sparse: the bundle identifies vulnerability class, affected product, affected version ceiling, CVSS vector, CWE-79, and Patchstack reference. It does not include vulnerable parameter details, proof-of-concept, exploit telemetry, or a named fixed version, so validation should stay version- and vendor-guidance based.
Mitigation direction
- Inventory WordPress sites for Master Slider Pro installations and versions.
- Check Averta or Patchstack guidance for the supported fixed version.
- Update, disable, or remove the plugin based on vendor guidance.
- Prioritize sites with admin users, customer sessions, or public traffic.
- Use temporary compensating controls while awaiting confirmed vendor remediation.
Validation and detection
- Confirm whether Master Slider Pro is installed on each WordPress site.
- Record installed plugin version and compare against <= 3.6.5 exposure.
- Review vendor advisories for fixed-version or mitigation confirmation.
- Check web logs for unusual requests targeting Master Slider Pro paths.
- Verify remediation by confirming the vulnerable version is no longer deployed.
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-2023-47508 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.