CVE-2026-14559 teddy-bear-customize-addon CVE debrief

Who should care

Defenders responsible for WordPress installations using the teddy-bear-customize-addon plugin should assess exposure and prioritize verification and remediation. This includes operators, platform administrators, vulnerability management teams, and security teams who need to review and address the vulnerability to prevent potential unauthorized login attempts and protect against confidentiality, integrity, and availability impacts.

Why it matters

The CVE-2026-14559 vulnerability in the teddy-bear-customize-addon WordPress plugin allows unauthenticated attackers to log in as any registered user, including administrators. Defenders should prioritize verifying exposure, restricting access to the plugin's authentication functionality, and monitoring for potential unauthorized login attempts.

• Potential unauthorized login attempts
• Possible elevation of privileges for attackers
• Required verification of WordPress installation exposure
• Potential impact on confidentiality, integrity, and availability

Technical summary

The teddy-bear-customize-addon WordPress plugin through 1.0.5 does not verify a user's password before authenticating them, allowing unauthenticated attackers to log in as any registered user, including administrators, by supplying only that user's email address. This vulnerability is a critical issue, with a CVSS score of 9.8, and affects WordPress installations using the plugin. Defenders should prioritize verifying exposure and restricting access to the plugin's authentication functionality to mitigate potential unauthorized login attempts.

Defensive priority

Defenders should prioritize verifying exposure of WordPress installations using the teddy-bear-customize-addon plugin version 1.0.5 or earlier and restrict access to the plugin's authentication functionality.

Recommended defensive actions

• Verify WordPress installations for the teddy-bear-customize-addon plugin version 1.0.5 or earlier
• Restrict access to the plugin's authentication functionality
• Monitor for potential unauthorized login attempts
• 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information on affected versions, exploitation, and remediation may be limited. The source corpus provides evidence for the vulnerability, but defenders should verify the affected scope and vendor guidance. The CVE Program and NVD entries are official sources, but further details may require additional research.

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.