CVE-2026-46511

HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, an attack chain utilizing Stored XSS alongside dynamic token exposure in the /system/api/connectionSettings endpoint allows an authenticated attacker to perform a complete cross-tenant account takeover...

CVE-2026-46511 HAXcms: Mass Token Exfiltration and Cross-Tenant Hijack

HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, an attack chain utilizing Stored XSS alongside dynamic token exposure in the /system/api/connectionSettings endpoint allows an authenticated attacker to perform a complete cross-tenant account takeover...

CVE-2026-46395

HAX CMS Node.js backend (before 26.0.0) exposes a critical cryptographic flaw in the hmacBase64() function. It uses a hardcoded signing key of the string "0" and then appends the real key (this.privateKey + this.salt) to the output, producing tokens that reveal the private key when decoded. An un...

GHSA-X3X5-7H4H-GWXG HAXcms: Mass Token Exfiltration and Cross-Tenant Hijack

Summary An attack chain utilizing Stored XSS alongside dynamic token exposure in the /system/api/connectionSettings endpoint allows an authenticated attacker to perform a complete cross-tenant account takeover. The API dynamically leaks the active session's authentication tokens including the jwt...

GHSA-6C8G-9HFH-PQ5H HAXcms: Private Key Disclosure via Broken HMAC Implementation

Summary The hmacBase64 function in the HAXcms Node.js backend contains two critical cryptographic implementation errors that together allow any unauthenticated attacker to extract the system’s private signing key and forge arbitrary admin-level JSON Web Tokens JWTs allowing them to get full admin...

PT-2026-41976

Name of the Vulnerable Software and Affected Versions HAX CMS versions prior to 26.0.0 Description The hmacBase64 function in the HAXcms Node.js backend contains two cryptographic implementation errors. First, the function uses a hardcoded string "0" as the HMAC signing key instead of the intende...

PT-2026-41979

Name of the Vulnerable Software and Affected Versions HAX CMS versions prior to 26.0.0 Description An attack chain combining Stored XSS and dynamic token exposure allows an authenticated attacker to perform a complete cross-tenant account takeover. The system is vulnerable to Stored XSS through...