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PatchSiren cyber security CVE debrief

CVE-2026-14563 advanced-customized-prompts CVE debrief

The advanced-customized-prompts WordPress plugin through 1.0.1 does not verify the password before issuing an authenticated session for a supplied email address in an unauthenticated action, allowing unauthenticated attackers to log in as any registered user, including administrators, or to create arbitrary new accounts. This vulnerability enables attackers to bypass authentication mechanisms, potentially leading to unauthorized access to sensitive information or control of the affected WordPress installations.

Vendor
advanced-customized-prompts
Product
advanced-customized-prompts
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-11
Original CVE updated
2026-09-11
Advisory published
2026-09-11
Advisory updated
2026-09-11

Who should care

Defenders responsible for WordPress installations, especially those with untrusted or unauthenticated access, should assess exposure and prioritize remediation. This includes administrators, security teams, and IT personnel who manage WordPress installations. They should verify the plugin version, restrict access, and monitor for suspicious activity to prevent potential exploitation.

Why it matters

This vulnerability allows unauthenticated attackers to gain unauthorized access to WordPress installations, potentially leading to further exploitation or data breaches.

  • Unauthenticated attackers can log in as any registered user, including administrators.
  • Arbitrary new accounts can be created by unauthenticated attackers.
  • Defenders should verify and remediate this vulnerability to prevent unauthorized access.

Technical summary

The advanced-customized-prompts WordPress plugin through 1.0.1 does not verify the password before issuing an authenticated session for a supplied email address in an unauthenticated action. This allows attackers to gain unauthorized access to WordPress installations without needing to know the password, potentially leading to further exploitation or data breaches. The vulnerability is due to a lack of proper authentication checks in the plugin's code, which can be exploited by sending a crafted request to the affected plugin.

Defensive priority

Defenders should prioritize verifying and remediating this vulnerability in their WordPress installations, especially those with untrusted or unauthenticated access.

Recommended defensive actions

  • Verify the version of the advanced-customized-prompts WordPress plugin and update to a patched version if available.
  • Restrict access to the WordPress installation to trusted users and networks.
  • Monitor for suspicious login attempts and account creations.
  • Implement additional security measures such as two-factor authentication or IP blocking.
  • Conduct regular security audits to identify potential vulnerabilities.
  • Review and update incident response plans to address potential exploitation.
  • Consider using a Web Application Firewall (WAF) to detect and prevent exploitation attempts.

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. Defenders should verify the plugin version and check for any available patches or updates. The lack of password verification allows for easy exploitation, and defenders should be cautious of potential unauthorized access.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-14563 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-14563

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-14563 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-14563

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental 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.