Security readout for executives and security teams
Plain-English summary
This flaw affects websites using the Moova for WooCommerce plugin through version 3.5. A malicious link could cause script to run in a visitor's browser if the visitor opens it. The main business risks are session abuse, data exposure, or checkout-page manipulation, but user interaction is required.
Executive priority
Handle this as a moderate-priority web application issue. It is not listed as actively exploited in the supplied evidence, but checkout-page XSS can affect customer trust and session security. Prioritize internet-facing commerce sites first.
Technical view
CVE-2021-34664 is reflected cross-site scripting in Moova for WooCommerce <=3.5 through the lat parameter in Checkout/Checkout.php. It is CWE-79 with CVSS 3.1 score 6.1, network reachable, low complexity, no privileges required, and user interaction required.
Likely exposure
Exposure is limited to WordPress sites running WooCommerce with Moova for WooCommerce version 3.5 or earlier. Public checkout flows are the most relevant surface. Organizations without this plugin, or with a vendor-confirmed fixed version, are not indicated as affected by the supplied sources.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. Exploitation would require convincing a user to open a crafted request or link that reaches the vulnerable checkout code. Treat it as phishing-assisted web risk, not unauthenticated server takeover.
Researcher notes
Evidence identifies the vulnerable sink location and parameter but does not include a patch version, exploit telemetry, or vendor remediation text. Avoid assuming broader Moova products are affected. Validate only against plugin presence, version, and checkout code exposure.
Mitigation direction
- Inventory WordPress sites for Moova for WooCommerce version 3.5 or earlier.
- Check vendor, WordPress plugin, or Wordfence guidance for a confirmed fixed release.
- Update only to a vendor-confirmed fixed version when available.
- Disable or remove the plugin where business impact permits until guidance is verified.
- Prioritize remediation on public checkout sites handling customer sessions or payment workflows.
Validation and detection
- Confirm whether each WooCommerce site has the plugin installed and enabled.
- Record the installed plugin version and compare it to <=3.5.
- Review checkout handling for exposed lat parameter behavior.
- Check web logs for suspicious checkout requests containing script-like input.
- Retest after remediation to confirm the affected version is no longer present.
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-2021-34664 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
- 6.1 (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: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:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34664CVE reference · x_refsource_MISC
- https://plugins.trac.wordpress.org/browser/moova-for-woocommerce/tags/3.5/Checkout/Checkout.php#L57CVE reference · x_refsource_MISC
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.