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PatchSiren cyber security CVE debrief

CVE-2019-25763 Ultimatebeaver CVE debrief

CVE-2019-25763 is a critical authentication bypass vulnerability in WordPress Ultimate Addons for Beaver Builder 1.2.4.1. Attackers can exploit the social media login form functionality to gain unauthorized access. The vulnerability allows attackers to submit a POST request to the admin-ajax.php endpoint with the uabb-lf-google-submit action, a valid administrator email address, and a valid nonce to obtain session cookies and authenticate as that user. This issue has a CVSS score of 9.3 and is considered critical. Defenders should prioritize patching or mitigating this vulnerability to prevent unauthorized access.

Vendor
Ultimatebeaver
Product
Ultimate Addons for Beaver Builder
CVSS
CRITICAL 9.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-20
Original CVE updated
2026-06-22
Advisory published
2026-06-20
Advisory updated
2026-06-22

Who should care

Defenders responsible for WordPress installations with the Ultimate Addons for Beaver Builder plugin, especially those using version 1.2.4.1, should be aware of this critical vulnerability. Security teams and administrators of WordPress environments should assess their exposure and take necessary actions to protect their sites.

Technical summary

The CVE-2019-25763 vulnerability in WordPress Ultimate Addons for Beaver Builder 1.2.4.1 allows attackers to bypass authentication by exploiting the social media login form functionality. A POST request to the admin-ajax.php endpoint with specific parameters can be used to obtain session cookies and authenticate as an administrator. This issue is critical, with a CVSS score of 9.3, indicating a high severity level.

Defensive priority

High priority due to critical CVSS score and potential for unauthorized access

Recommended defensive actions

  • Apply the latest patch or update for Ultimate Addons for Beaver Builder to version 1.2.4.2 or later
  • Review and restrict access to the admin-ajax.php endpoint
  • Monitor for suspicious activity related to authentication attempts
  • Implement additional security measures such as two-factor authentication
  • Inventory WordPress installations and plugins to identify potential exposure

Evidence notes

The CVE-2019-25763 vulnerability is documented in the NVD database and has a CVSS score of 9.3. The vulnerability allows attackers to bypass authentication in WordPress Ultimate Addons for Beaver Builder 1.2.4.1. Defenders should verify the version of the plugin in use and check for any available patches or updates.

Sources and references

Verified primary and authoritative sources

  • CVE-2019-25763 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2019-25763

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

  • CVE-2019-25763 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2019-25763

    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.