CVE-2026-12800: SQL Injection (CVSS 7.5)

Description

The Premium Packages – Sell Digital Products Securely plugin for WordPress is vulnerable to SQL Injection via the 'code' parameter of the POST /wp-json/wpdmpp/v1/cart/coupon REST API endpoint in versions up to, and including, 6.2.0. This is due to insufficient escaping on the user-supplied parameter, which is interpolated directly into a raw SQL query string in the CouponCodes::find() method without use of $wpdb->prepare() or esc_sql(). This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0030

Probability of exploitation

0.23%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-89 SQL Injection

References

Other References

https://plugins.trac.wordpress.org/browser/wpdm-premium-packages/tags/6.2.0/includes/libs/CouponCodes.php#L26 https://plugins.trac.wordpress.org/browser/wpdm-premium-packages/tags/6.2.0/includes/libs/CouponCodes.php#L82 https://plugins.trac.wordpress.org/browser/wpdm-premium-packages/tags/6.2.0/includes/libs/MiniCartAPI.php#L398 https://plugins.trac.wordpress.org/changeset/3595291/wpdm-premium-packages https://www.wordfence.com/threat-intel/vulnerabilities/id/b288386c-709c-49a6-9b46-28bf46c3c303?source=cve

Frequently Asked Questions

What is CVE-2026-12800? +

The Premium Packages – Sell Digital Products Securely plugin for WordPress is vulnerable to SQL Injection via the 'code' parameter of the POST /wp-json/wpdmpp/v1/cart/coupon REST API endpoint in versions up to, and including, 6.2.0. This is due to insufficient escaping on the user-supplied parameter, which is interpolated directly into a raw SQL query string in the CouponCodes::find() method without use of $wpdb->prepare() or esc_sql(). This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-12800? +

CVE-2026-12800 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0030, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-12800? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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