EN

CVE-2026-4663

Medium
5.3
0.05.010.0
Year
2026
Published
May 12, 2026
Known Affected Devices
0
CVSS Score
5.3

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.

CVSS Vector Breakdown

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

Exploitable remotely over the network without requiring access to the local system.

AC
Attack Complexity
Low

No special conditions required. Exploit can be performed reliably and repeatedly.

PR
Privileges Required
None

No authentication required. Any anonymous user can exploit this vulnerability.

UI
User Interaction
None

No user interaction required. Exploit runs without any victim action.

S
Scope
Unchanged

Exploiting the vulnerability only affects the vulnerable component itself.

C
Confidentiality Impact
None

No confidentiality impact. Sensitive data is not exposed.

I
Integrity Impact
Low

Attacker can modify some data, but scope or consequence is limited.

A
Availability Impact
None

No availability impact. Service remains fully operational.

FAQ

How severe is CVE-2026-4663?

CVE-2026-4663 has a CVSS score of 5.3/10, rated as Medium. Review the affected products list and apply vendor patches.

What does the CVSS score mean for CVE-2026-4663?

CVSS (Common Vulnerability Scoring System) rates vulnerability severity from 0.0 to 10.0. CVE-2026-4663 scores 5.3/10 (Medium). Scores 9.0–10.0 are Critical, 7.0–8.9 are High, 4.0–6.9 are Medium, and below 4.0 are Low.

Which devices are affected by CVE-2026-4663?

The list of devices confirmed to be affected by CVE-2026-4663 is shown in the "Affected Devices" section above. Check your firmware version against the vendor security advisory and apply the latest patch.

How do I fix or mitigate CVE-2026-4663?

Apply the latest firmware or software update from the vendor. Check the References section above for official advisories and patch notes. If no patch is available, consider disabling the affected feature or isolating the device from untrusted networks.