CVE-2026-73341Network attack vector

Object injection via unsafe deserialization

Published Aug 18, 2026 · Updated Aug 18, 2026

PHP object injection in Metagauss RegistrationMagic 6.0.9.7 and earlier allows remote attackers to inject crafted serialized input. Patchstack has disclosed only that untrusted input reaches PHP deserialization in the plugin; the vulnerable endpoint or function has not been published in the CNA record, vendor page, or linked advisory. No authentication or user interaction is required, but high-impact outcomes depend on a usable POP chain in WordPress, the plugin, or another installed component.

CVSS severity9.8
Critical
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

PHP object injection in Metagauss RegistrationMagic 6.0.9.7 and earlier allows remote attackers to inject crafted serialized input. Patchstack has disclosed only that untrusted input reaches PHP deserialization in the plugin; the vulnerable endpoint or function has not been published in the CNA record, vendor page, or linked advisory. No authentication or user interaction is required, but high-impact outcomes depend on a usable POP chain in WordPress, the plugin, or another installed component.

The record

CVE
CVE-2026-73341
Published
Aug 18, 2026
Updated
Aug 18, 2026
Vendor
EventPrime Events
Product
RegistrationMagic
Classifications
CWE-502, CAPEC-586, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=6.0.9.7 changes=[{"at":"6.0.9.8","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

EventPrime Events · RegistrationMagicversion=n/a <=6.0.9.7 changes=[{"at":"6.0.9.8","status":"unaffected"}]

Published CVSS scores

9.8PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CAPEC-586Object Injection
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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