CVE-2026-14560 teddy-bear-customize-addon CVE debrief

Who should care

Defenders responsible for WordPress installations with the teddy-bear-customize-addon plugin, especially those with high-risk exposure or sensitive data, should assess exposure, verify vulnerability, and prioritize remediation to prevent potential code execution and data breaches.

Why it matters

CVE-2026-14560 is a critical vulnerability in the teddy-bear-customize-addon WordPress plugin that allows unauthenticated attackers to upload arbitrary PHP files and execute code on the server. Defenders should assess exposure, verify vulnerability, and prioritize remediation to prevent potential code execution and data breaches.

• Potential arbitrary code execution on the server
• Possible unauthorized access to sensitive data
• Risk of lateral movement within the network
• Need for verification of affected versions and remediation

Technical summary

The teddy-bear-customize-addon WordPress plugin through 1.0.5 does not properly validate uploaded files, relying on a client-supplied content type and preserving the original filename, allowing unauthenticated attackers to upload arbitrary PHP files and execute code on the server. This vulnerability enables attackers to execute code on the server, potentially leading to unauthorized access, data breaches, and lateral movement within the network. Defenders should assess exposure, verify vulnerability, and prioritize remediation to prevent potential code execution and data breaches.

Defensive priority

High priority for defenders to assess exposure and verify vulnerability, especially for WordPress installations with the teddy-bear-customize-addon plugin.

Recommended defensive actions

• Assess exposure of WordPress installations with the teddy-bear-customize-addon plugin
• Verify vulnerability and check for uploaded PHP files
• Update the plugin to a fixed version if available
• Monitor for suspicious activity and implement compensating controls
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional verification is required to confirm affected versions and remediation. The vulnerability allows unauthenticated attackers to upload arbitrary PHP files and execute code on the server, relying on a client-supplied content type and preserving the original filename. Defenders should verify the presence of affected versions, review compensating controls, and monitor for suspicious activity.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.