Security readout for executives and security teams
Plain-English summary
This vulnerability lets unauthenticated attackers create or send themselves WooCommerce Smart Coupons gift certificates on affected WordPress stores. The business impact is unauthorized discounts or free purchases, causing direct revenue loss and potential order abuse rather than data theft or service outage.
Executive priority
Treat as a near-term e-commerce fraud risk. It is not rated critical, but affected stores could lose revenue through unauthorized gift certificates. Prioritize internet-facing WooCommerce sites and confirm plugin versions before the next sales cycle or campaign.
Technical view
CVE-2020-36841 is an authorization bypass in WooCommerce Smart Coupons up to and including 4.6.0. A missing capability check in woocommerce_coupon_admin_init allows unauthenticated coupon or gift certificate creation. CVSS 3.1 is 5.3, with network access, low complexity, and no privileges required.
Likely exposure
Exposure is limited to public WordPress/WooCommerce storefronts running WooCommerce Smart Coupons versions up to and including 4.6.0. Sites not using this plugin, or using newer fixed versions, are not indicated as affected.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. The flaw is still meaningful because unauthenticated access and low complexity can enable financial abuse if an affected storefront remains online.
Researcher notes
The core issue is CWE-285: improper authorization. The CVE description identifies a missing capability check in woocommerce_coupon_admin_init. The affected metadata in the bundle is sparse, so rely on the described <=4.6.0 range and vendor/Wordfence references for scoping.
Mitigation direction
- Upgrade WooCommerce Smart Coupons to a vendor-supported version newer than 4.6.0.
- If immediate upgrade is impossible, disable the Smart Coupons plugin until remediated.
- Review vendor and Wordfence guidance for the exact patched release and operational notes.
- Audit existing coupons and gift certificates for unauthorized high-value entries.
- Review recent orders where gift certificates covered unusually large purchase amounts.
Validation and detection
- Inventory WordPress sites using WooCommerce Smart Coupons.
- Confirm the installed Smart Coupons version is greater than 4.6.0.
- Check coupon and gift certificate records for unexpected creation times or values.
- Review web and application logs for unauthenticated coupon administration activity indicators.
- Verify unauthenticated users cannot create coupons through the affected workflow.
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-285: 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-36841 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
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 Authorization
Improper Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.