CVE-2026-4663: Auth Bypass (CVSS 5.3)

Description

The iPOSpays Gateways WC plugin for WordPress is vulnerable to Missing Authorization in versions up to and including 1.3.7. This is due to the plugin exposing a REST API endpoint /wp-json/ipospays/v1/save_settings with 'permission_callback' set to '__return_true', which allows unauthenticated access without any capability checks or nonce verification. This makes it possible for unauthenticated attackers to update plugin settings, specifically allowing them to overwrite critical payment gateway settings including live API keys, secret keys, and payment tokens stored in the 'woocommerce_ipospays_settings' option.

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CVSS v3.1 Score

5.3

MEDIUM

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

EPSS — Exploit Prediction

0.0008

Probability of exploitation

0.22%

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-862 Missing Authorization

References

Other References

https://plugins.trac.wordpress.org/browser/ipospays-gateways-wc/tags/1.3.7/includes/payment-methods/class-ftd-redirect-gateway.php#L253 https://plugins.trac.wordpress.org/browser/ipospays-gateways-wc/tags/1.3.7/includes/payment-methods/class-ftd-redirect-gateway.php#L336 https://plugins.trac.wordpress.org/browser/ipospays-gateways-wc/tags/1.3.7/includes/payment-methods/class-ftd-redirect-gateway.php#L381 https://plugins.trac.wordpress.org/browser/ipospays-gateways-wc/trunk/includes/payment-methods/class-ftd-redirect-gateway.php#L253 https://plugins.trac.wordpress.org/browser/ipospays-gateways-wc/trunk/includes/payment-methods/class-ftd-redirect-gateway.php#L336 https://plugins.trac.wordpress.org/browser/ipospays-gateways-wc/trunk/includes/payment-methods/class-ftd-redirect-gateway.php#L381 https://www.wordfence.com/threat-intel/vulnerabilities/id/a1a30930-31c1-4254-867c-073932672a39?source=cve

Frequently Asked Questions

What is CVE-2026-4663? +

The iPOSpays Gateways WC plugin for WordPress is vulnerable to Missing Authorization in versions up to and including 1.3.7. This is due to the plugin exposing a REST API endpoint /wp-json/ipospays/v1/save_settings with 'permission_callback' set to '__return_true', which allows unauthenticated access without any capability checks or nonce verification. This makes it possible for unauthenticated attackers to update plugin settings, specifically allowing them to overwrite critical payment gateway settings including live API keys, secret keys, and payment tokens stored in the 'woocommerce_ipospays_settings' option. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-4663? +

CVE-2026-4663 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0008, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-4663? +

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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