CVE-2026-78572
HighCVSS 8.1Exploitation Probability (EPSS)
Low risk39th percentile - higher than 39% of all known CVEs
Summary
The Kalles Addons plugin for WordPress up to version 1.0.6 is vulnerable to PHP Object Injection via deserialization of untrusted input. This allows unauthenticated attackers to inject a PHP object. No known POP chain exists in the vulnerable software, so the vulnerability has no impact unless another plugin or theme with a POP chain is installed.
Risk Assessment
If a POP chain is present via an additional plugin or theme, an attacker could delete arbitrary files, retrieve sensitive data, or execute code depending on the chain.
Recommendation
Update the Kalles Addons plugin to the latest version if available. Additionally, remove unused plugins and themes to minimize the risk of a POP chain.
Other vulnerabilities in Kalles Addons
Original NVD description (English source)
The Kalles Addons plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.0.6 via deserialization of untrusted input. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.