Security readout for executives and security teams
Plain-English summary
Affected WooCommerce stores could let a logged-in attacker link their account to another user's Stripe identifier, potentially making purchases using that user's payment account. This is not described as full site compromise, but it creates direct financial abuse risk for stores with customer logins.
Executive priority
Treat as a moderate priority for any public WooCommerce store with customer accounts. It is not identified as actively exploited, but payment-account misuse can create financial loss, refunds, chargebacks, and customer trust impact.
Technical view
CVE-2021-39347 is a CWE-862 missing authorization control in the Stripe for WooCommerce plugin save() function in includes/admin/class-wc-stripe-admin-user-edit.php. Versions 3.0.0 through 3.3.9 are affected. CVSS 3.1 is 4.3: network reachable, low complexity, low privileges required, integrity impact only.
Likely exposure
Exposure is likely limited to WordPress/WooCommerce sites running Stripe for WooCommerce versions 3.0.0 through 3.3.9. Risk is higher where untrusted customers can create or access accounts. Sites not using this plugin, or using versions outside the affected range, are not identified as affected by the supplied sources.
Exploitation context
The supplied sources and KEV status do not show active exploitation. Abuse requires an authenticated low-privilege account and targets Stripe identifier authorization, not unauthenticated code execution. The business impact is payment misuse and transaction integrity loss rather than confidentiality or availability damage.
Researcher notes
Evidence identifies the vulnerable function and affected version range, but the bundle does not provide exploit telemetry or detailed remediation text. Validate by version inventory and data integrity review; avoid assuming broader Stripe, WooCommerce, or WordPress core exposure.
Mitigation direction
- Upgrade Stripe for WooCommerce beyond the affected 3.0.0-3.3.9 range after checking vendor guidance.
- Audit user Stripe identifiers for unexpected associations.
- Review WooCommerce orders for suspicious purchases or payment disputes during the vulnerable period.
- Limit untrusted account access until the plugin is verified remediated.
Validation and detection
- Inventory WordPress sites using Stripe for WooCommerce.
- Confirm installed plugin versions are not 3.0.0 through 3.3.9.
- Check user records for duplicate or unexpected Stripe identifiers.
- Review logs and orders for account/payment mismatches.
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-862: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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-2021-39347 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
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/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:L/UI:N/S:U/C:N/I:L/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39347CVE reference · x_refsource_MISC
- https://plugins.trac.wordpress.org/changeset/2601162/woo-stripe-payment/trunk/includes/admin/class-wc-stripe-admin-user-edit.phpCVE 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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.