Security readout for executives and security teams
Plain-English summary
CVE-2026-0939 affects the Rede Itaú for WooCommerce WordPress plugin. Vulnerable versions can accept unauthenticated payment callback data, allowing an outside attacker to change WooCommerce order status. The main business risk is order integrity: unpaid orders could appear paid, or legitimate orders could be marked failed.
Executive priority
Prioritize remediation for stores actively using this plugin for payments. The issue can affect revenue assurance and fulfillment accuracy, but current public evidence supports moderate—not critical—urgency.
Technical view
The plugin fails to verify payment callback authenticity, mapped to CWE-345. Wordfence reports all versions up to and including 5.1.2 are vulnerable. CVSS 3.1 is 5.3: network-reachable, low complexity, no privileges, no user interaction, with low integrity impact and no confidentiality or availability impact.
Likely exposure
Exposure is limited to WordPress/WooCommerce sites running Rede Itaú for WooCommerce — Payment PIX, Credit Card and Debit versions 5.1.2 or earlier. Internet-facing stores using this payment workflow are the primary concern.
Exploitation context
The vulnerability is unauthenticated and remotely reachable, but the documented impact is limited to order status manipulation. The source bundle does not show CISA KEV listing or other evidence of active exploitation.
Researcher notes
Focus review on callback authenticity checks in the referenced endpoint file and the 5.1.3 changeset. Do not assume broader payment compromise; the cited impact is order status integrity only.
Mitigation direction
- Upgrade the plugin to version 5.1.3 or later if available.
- Check vendor and WordPress plugin guidance for any additional remediation.
- Review recent WooCommerce orders for suspicious paid or failed status changes.
- Temporarily increase manual payment reconciliation for affected stores.
Validation and detection
- Inventory WordPress sites using the Rede Itaú for WooCommerce plugin.
- Confirm installed plugin versions are not 5.1.2 or earlier.
- Review order history for unpaid orders marked paid unexpectedly.
- Check payment gateway logs against WooCommerce order status changes.
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-345: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2026-0939 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
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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:N/S:U/C:N/I:L/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/722c666b-913f-4289-82e6-30aa0a3abc2b?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/woo-rede/tags/5.1.2/Includes/LknIntegrationRedeForWoocommerceWcEndpoint.php#L45CVE reference
- https://plugins.trac.wordpress.org/changeset/3441046/woo-rede/tags/5.1.3/Includes/LknIntegrationRedeForWoocommerceWcEndpoint.phpCVE 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.
Insufficient Verification of Data Authenticity
Insufficient Verification of Data Authenticity represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.