CVE-2021-39308
WooCommerce myghpay Payment Gateway <= 3.0 Reflected Cross-Site Scripting
The WooCommerce myghpay Payment Gateway WordPess plugin is vulnerable to Reflected Cross-Site Scripting via the clientref parameter found in the ~/processresponse.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 3.0.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
WooCommerce myghpay Payment Gateway <= 3.0 Reflected Cross-Site Scripting
The WooCommerce myghpay Payment Gateway WordPess plugin is vulnerable to Reflected Cross-Site Scripting via the clientref parameter found in the ~/processresponse.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 3.0.
- Record
CVE-2021-39308- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-25669
The WooCommerce myghpay Payment Gateway WordPess plugin is vulnerable to Reflected Cross-Site Scripting via the clientref parameter found in the ~/processresponse.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 3.0.
- Record
EUVD-2021-25669- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mpg5-6753-g2p4 No score
The WooCommerce myghpay Payment Gateway WordPess plugin is vulnerable to Reflected Cross-Site...
The WooCommerce myghpay Payment Gateway WordPess plugin is vulnerable to Reflected Cross-Site Scripting via the clientref parameter found in the ~/processresponse.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 3.0.
- Record
GHSA-mpg5-6753-g2p4- Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
The WooCommerce myghpay Payment Gateway WordPess plugin is vulnerable to Reflected Cross-Site Scripting via the clientref parameter found in the ~/processresponse.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 3.0.
- Record
CVE-2021-39308- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-39308 is a medium vulnerability (CVSS 6.1) in Woocommerce Myghpay Payment Gateway Myghpay Payment Gateway, published December 14, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.78%, the 56th percentile. No source names a fixed version.