CVE-2025-4105: Splitit <= 4.2.8 - Missing Authorization to Multiple Administrative Actions

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-05-21 · updated 2026-06-17
Weakness: CWE-862

Description

The Splitit plugin for WordPress is vulnerable to unauthorized modification of data due to missing capability checks on several functions in the 'splitIt-flexfields-payment-gateway.php' file in all versions up to, and including, 4.2.8. This makes it possible for authenticated attackers, with Subscriber-level access and above, to change plugin settings, including changing the environment from sandbox to production and vice versa.

Affected products

Splitit: through 4.2.8

References

https://plugins.trac.wordpress.org/browser/splitit-installment-payments/tags/4.2.6/splitIt-flexfields-payment-gateway.php#L1927
https://plugins.trac.wordpress.org/browser/splitit-installment-payments/tags/4.2.6/splitIt-flexfields-payment-gateway.php#L765
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3297893%40splitit-installment-payments&new=3297893%40splitit-installment-payments&sfp_email=&sfph_mail=
https://www.wordfence.com/threat-intel/vulnerabilities/id/6471b075-8115-4d38-a7dd-2308dca69f15?source=cve

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