WordPress Plugin Authentication Bypass via Empty Credentials

The asVereinbase WordPress plugin before 1.1.8 does not require a valid password or a genuine second factor before authenticating a user, treating an empty stored value as a match, so an unauthenticated attacker can log in as any user, including an administrator.

Casky was already ahead

This CVE exploits attack patterns that Casky's 283matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

The asVereinbase WordPress plugin before version 1.1.8 contains a critical authentication bypass vulnerability (CVE-2026-110956, CVSS 9.8) that allows unauthenticated attackers to log in as any user, including administrators, without providing valid credentials or second factors. The flaw stems from improper authentication logic (CWE-287) that treats empty or missing stored password and MFA values as valid matches, effectively disabling access controls. This affects all WordPress installations running the vulnerable plugin version, with particular risk to sites managing sensitive data or business operations. The vulnerability has severe implications for confidentiality, integrity, and availability, as attackers gain unrestricted administrative access.

Casky's 283 mapped security skills leverage Claude's extended reasoning to detect the attack patterns associated with TA0004 (Privilege Escalation) and TA0006 (Credential Access) techniques underlying this vulnerability. Practitioners using Casky would identify anomalous authentication events—such as successful admin logins without password verification, MFA bypass attempts, or authentication flows that skip credential validation stages. The platform's skills help correlate suspicious sign-in patterns, detect unusual privilege elevation sequences, and flag authentication mechanism tampering. By analyzing plugin code logic and comparing against MITRE ATT&ACK patterns, Casky enables security teams to discover similar authentication weaknesses before exploitation, recognize active exploitation attempts in logs, and prioritize remediation of this critical flaw across their WordPress infrastructure.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

283 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-110956.

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

Access with Stolen Session Cookie

identity access management · low

Run

MITRE ATT&CK Techniques

TA0004 TA0006

Investigate the attack patterns behind CVE-2026-110956

Casky has 283 skills that investigate the attack patterns behind CVE-2026-110956. Run one and get CVSS-scored findings in 3 minutes.

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