ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2017-20208

metagauss registrationmagic Deserialization of Untrusted Data

Published Oct 2, 2017 · catalog updated Apr 8, 2026 · Metagauss RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login

Patch now

CVE-2017-20208 is in the CISA known-exploited catalog. Confirm Metagauss RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
Critical9.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
0.71%
Remediation
Remediation guidance
Affected products
vendor Metagauss RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login 0 <3.7.9.3 · vendor metagauss registrationmagic

The RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login plugin for WordPress is vulnerable to PHP Object Injection in all versions up to 3.7.9.3 (exclusive) via deserialization of untrusted input from the is_expired_by_date() function. This makes it possible for unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows attackers to fetch a remote file and install it on the site.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Metagauss RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login 0 <3.7.9.30 <3.7.9.3
  • vendor metagauss registrationmagicversion unspecified

How to fix CVE-2017-20208

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2017-20208 is in the CISA known-exploited catalog. Confirm Metagauss RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with Metagauss RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login 0 <3.7.9.3 0 <3.7.9.3. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 0.71%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 2, 2017 · VulnCheck KEV

    Detected

    The RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login plugin for WordPress is vulnerable to PHP Object Injection in all versions up to 3.7.9.3 (exclusive) via deserialization of untrusted input from the is_expired_by_date() function. This makes it possible for unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows att

  2. Oct 2, 2017 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

  3. Apr 8, 2026 · EUVD

    Updated

    The RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login plugin for WordPress is vulnerable to PHP Object Injection in all versions up to 3.7.9.3 (exclusive) via deserialization of untrusted input from the is_expired_by_date() function. This makes it possible for unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows att

Sources

  • CVE.orgVulnerability recordCVE-2017-20208

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2017-20208

    30-day exploitation probability 0.71%

    first.org
  • EUVDVulnerability recordEUVD-2017-18922

    The RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login plugin for WordPress is vulnerable to PHP Object Injection in all versions up to 3.7.9.3 (exclusive) via deserialization of untrusted input from the is_expired_by_date() function. This m

    euvd.enisa.europa.eu
  • VulnCheck KEVConfirmed exploitationCVE-2017-20208

    The RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login plugin for WordPress is vulnerable to PHP Object Injection in all versions up to 3.7.9.3 (exclusive) via deserialization of untrusted input from the is_expired_by_date() function. This m

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 21, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.