CVE-2023-25054Network attack vector

Unauthenticated object injection via untrusted details deserialization

Published Dec 29, 2023 · Updated Apr 28, 2026

PHP object injection in David F. Carr RSVPMaker 10.6.6 and earlier allows remote attackers to inject objects through untrusted details data. The plugin deserializes the attacker-controlled $details variable without restricting which PHP classes can be instantiated. Exploitation requires a usable POP chain from another installed plugin or theme; none exists in RSVPMaker itself, bounding the standalone impact to object injection.

CVSS severity9.8
Critical
EPSS probability0.85%
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 David F. Carr RSVPMaker 10.6.6 and earlier allows remote attackers to inject objects through untrusted details data. The plugin deserializes the attacker-controlled $details variable without restricting which PHP classes can be instantiated. Exploitation requires a usable POP chain from another installed plugin or theme; none exists in RSVPMaker itself, bounding the standalone impact to object injection.

The record

CVE
CVE-2023-25054
Published
Dec 29, 2023
Updated
Apr 28, 2026
Vendor
David F. Carr
Product
RSVPMaker
Classifications
CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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 <=10.6.6 changes=[{"at":"10.6.7","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

David F. Carr · RSVPMakerversion=n/a <=10.6.6 changes=[{"at":"10.6.7","status":"unaffected"}]

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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-94Improper Control of Generation of Code ('Code 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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