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Paystack WooCommerce Payment Gateway <= 5.8.5 — Unauthenticated Sensitive Information Exposure in 'key' Parameter on order-pay Endpoint

CVE-2026-93370Published · Updated

Action summary

Affected: ≤5.8.5Update to 5.8.6 or newer

All remediation steps
Watch plugin
Severity
Medium5.3
CVSS
5.3
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:L Confidentiality
Low
I:N Integrity
None
A:N Availability
None
Weakness
CWE-200 Information Exposure
Required access
No account needed
Exploit prediction (EPSS)
0.3% chance in 30 days19th percentile
CISA KEV
Not listed
On this page8

Am I affected?

Paystack WooCommerce Payment Gateway woo-paystack

  1. Affected≤ 5.8.5
  2. Patched in5.8.6

Update to 5.8.6 or newer.

You are affected if you run ≤ 5.8.5. Version 5.8.6 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Paystack WooCommerce Payment Gateway.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 5.8.6, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Paystack WooCommerce Payment Gateway to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Osvaldo Noe Gonzalez Del Rio (Os).

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.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

Same weakness (Information Exposure)

All Information Exposure
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CVE-2026-120688
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Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
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Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
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CVE-2026-121518

Timeline

  1. CVE published

    Severity medium, CVSS 5.3

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
EPSS
Exploit Prediction Scoring System by FIRST.org.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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