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cve recordcritical

CVE-2026-15981

Published
CVSS9.8
Severitycritical
WeaknessCWE-287
ExploitedNot in CISA KEV

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 5.4.4. This is due to the mo_saml_validate_signature() function performing a loose boolean check on the raw tri-state integer returned by PHP's openssl_verify(), causing an error return value of -1 to be evaluated as truthy and therefore treated as a successful signature verification. This makes it possible for unauthenticated attackers to log in as any existing WordPress user, including administrators, by submitting a crafted SAMLResponse containing an attacker-controlled NameID and a deliberately malformed signature value that triggers an OpenSSL processing

References

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Our coverage of CVE-2026-15981

CVE-2026-61979critical

Two CVSS 9.8 Auth Bypasses in miniOrange SAML WordPress Plugin Were Exploited Before Any Database Even Listed the Paid Editions as Vulnerable

Two critical authentication bypass vulnerabilities (CVSS 9.8) in the miniOrange SAML 2.0 Single Sign On WordPress plugin have been actively exploited. These flaws allow unauthenticated attackers to forge SAML responses and gain administrative access. The vulnerabilities were particularly insidious because they affected paid editions of the plugin, which were not listed in public vulnerability databases and did not trigger automatic updates, leaving administrators unaware of their exposure.

CVE-2026-61979

WordPress Websites Targeted via MiniOrange Plugin Vulnerabilities

CVE-2026-61979 and CVE-2026-15981 are authentication bypass vulnerabilities affecting the MiniOrange SAML 2.0 SSO plugin. The post WordPress Websites Targeted via MiniOrange Plugin Vulnerabilities appeared first on SecurityWeek.