Race condition in YITH WooCommerce Gift Cards allows double spending
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
The YITH WooCommerce Gift Cards WordPress plugin before 4.38.1 does not lock or atomically update a gift card's balance during checkout redemption (CWE-362). An attacker who holds a gift card code can submit multiple checkouts for the same code at the same time and spend more than its funded value. The attack requires no authentication and is reachable over the network, but it has high complexity. A public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
The YITH WooCommerce Gift Cards WordPress plugin before 4.38.1 does not lock or atomically update a gift card's balance when it is redeemed at checkout, allowing an attacker who holds a gift card code to spend more than its funded value by submitting multiple checkouts for the same code at the same time.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | YITH WooCommerce Gift Cards | before 4.38.1 | 4.38.1 | Patch available | CNA |
- YITH WooCommerce Gift Cards VendorUnknown Affected before 4.38.1 Fixed in 4.38.1 Patch available CNA
Remediation
Update YITH WooCommerce Gift Cards to version 4.38.1, which fixes the flaw.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
- Fix · CNA YITH WooCommerce Gift Cards (Unknown) Fixed in 4.38.1
Timeline
- 2026-11-05 Threatist record created from CVE-2026-88814
- 2026-11-05 Alias added: GHSA-r9cj-c36h-r5w3
- 2026-11-06 CVSS score added · CISA ADP
- 2026-11-06 Weakness changed · CISA ADP
- 2026-11-06 CISA SSVC decision points changed
References
Sources
- CVE-2026-88814 · CVE Program
- CVE-2026-88814 · NVD
- FIRST EPSS
- GHSA-r9cj-c36h-r5w3 · GitHub Advisory Database · CC BY 4.0
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