WP Express Checkout <= 2.2.8 - Authenticated (Admin+) Stored Cross-Site Scripting via pec_coupon[code]
The WP Express Checkout plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘pec_coupon[code]’ parameter in versions up to, and including, 2.2.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with administrator-level access to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Note: This can potentially be exploited by lower-privileged users if the Admin Dashboard Access Permission setting it set for those users to access the dashboard.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | WP Express Checkout (Fast Payments via PayPal & Stripe) | = 2.2.8 | 2.2.9 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- WordPress
- Package
WP Express Checkout (Fast Payments via PayPal & Stripe)- Disclosed
- 17.03.2023
- Updated
- 11.10.2026 10:23
Sources and licenses
Wordfence Intelligence - b35ee801-f04d-4b22-8238-053b02a6ee0c - Wordfence Intelligence
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Vulnerability history: WP Express Checkout (Fast Payments via PayPal & Stripe)
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 03.2023 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 5
Disclosures per year
- 2023: 1
- 2024: 1
- 2025: 0
- 2026: 3
-
WP Express Checkout <= 2.2.8 - Authenticated (Admin+) Stored Cross-Site Scripting via pec_coupon[code] this entry
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