Sensitive information exposure in Paystack WooCommerce Payment Gateway
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
The Paystack WooCommerce Payment Gateway plugin for WordPress exposes sensitive information in all versions up to and including 5.8.5 through the 'key' parameter on the order-pay endpoint. An unauthenticated remote attacker can read customer personal data, including billing and shipping details and purchased products, by enumerating sequential order IDs. The exposure occurs only when the merchant has enabled the optional custom metadata feature in the gateway settings.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
Description from the CNA
The Paystack WooCommerce Payment Gateway plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.8.5 via the 'key' parameter. This makes it possible for unauthenticated attackers to extract customer PII — including billing name, email address, phone number, billing address, shipping address, and purchased product list — embedded into page HTML via wp_localize_script by enumerating sequential order IDs. This is only exploitable when the merchant has enabled the optional custom metadata feature in the Paystack gateway settings.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Paystack WooCommerce Payment Gateway.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
Timeline
- 2026-11-07 Threatist record created from CVE-2026-93370
- 2026-11-07 Alias added: GHSA-h386-5mv5-whv9
- 2026-11-08 CISA SSVC decision points changed
References
Other 6
- https://www.wordfence.com/threat-intel/vulnerabilities/id/51dd2908-d639-437d-b1e3-d463cc813240?source=cve
- https://plugins.trac.wordpress.org/browser/woo-paystack/tags/5.8.5/includes/class-wc-gateway-paystack.php#L864
- https://plugins.trac.wordpress.org/browser/woo-paystack/tags/5.8.5/includes/class-wc-gateway-paystack.php#L763
- https://plugins.trac.wordpress.org/browser/woo-paystack/tags/5.8.5/includes/class-wc-gateway-paystack.php#L708
- https://plugins.trac.wordpress.org/browser/woo-paystack/tags/5.8.5/includes/class-wc-gateway-paystack.php#L253
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3776685%40woo-paystack&new=3776685%40woo-paystack
More Paystack vulnerabilities
- TI-2024-21205 WordPress Payment Forms for Paystack plugin <= 3.4.1 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
- TI-2023-05209 Payment Forms for Paystack <= 3.4.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode CVSS 3.1MEDIUM 6.4
Sources
- CVE-2026-93370 · CVE Program
- CVE-2026-93370 · NVD
- FIRST EPSS
- GHSA-h386-5mv5-whv9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences