Security readout for executives and security teams
Plain-English summary
CVE-2023-6556 affects the FOX Currency Switcher Professional for WooCommerce WordPress plugin. A logged-in user with subscriber-level access could store script in currency options, causing it to run when affected pages are viewed. This is a medium-severity issue, but it matters on ecommerce sites with customer accounts or broad user registration.
Executive priority
Handle as a near-term ecommerce application risk, not an emergency. Prioritize sites with public registration, customer accounts, or many low-privilege users, because the bug can turn ordinary authenticated access into persistent script execution in the storefront or admin context.
Technical view
The issue is stored cross-site scripting caused by insufficient input sanitization and output escaping in currency options. Sources identify authenticated subscriber-and-higher attackers and CVSS 3.1 score 5.4. The bundle has version ambiguity: the title says <=1.4.1.6, while the description says through 1.4.1.5.
Likely exposure
Exposure is most likely on WordPress WooCommerce sites using the FOX Currency Switcher Professional plugin, especially where untrusted or customer-created accounts exist. The provided affected-version evidence is inconsistent, so inventory should treat versions up to 1.4.1.6 as requiring verification.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. Exploitation requires an authenticated account with subscriber-level privileges or higher, but no user interaction is listed in the CVSS vector.
Researcher notes
The public data supports CWE-79 stored XSS and authenticated subscriber-plus prerequisites. Treat the version range carefully: title and description disagree. The WordPress Trac code and changeset references should be used to confirm the exact fixed version and affected code path before closing exposure.
Mitigation direction
- Identify all sites using FOX Currency Switcher Professional for WooCommerce.
- Verify installed versions against vendor or Wordfence guidance because source version data conflicts.
- Update to a vendor-confirmed fixed release when available.
- Restrict creation and use of untrusted WordPress accounts until remediated.
- Review currency option values for unexpected script-like content.
Validation and detection
- Confirm whether the plugin is installed and enabled on WooCommerce sites.
- Record the installed plugin version and compare it with vendor guidance.
- Review WordPress roles for subscriber or higher access by untrusted users.
- Inspect currency option configuration for suspicious stored content.
- Check logs for recent currency option changes by low-privilege accounts.
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-2023-6556 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
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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:L/UI:N/S:U/C:L/I:L/A:N2.82.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/8cb37019-33f6-4f72-adfc-befbfbf69e47?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/woocommerce-currency-switcher/trunk/classes/smart-designer.php#L21CVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3012135%40woocommerce-currency-switcher&new=3012135%40woocommerce-currency-switcher&sfp_email=&sfph_mail=CVE reference
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.