CVE-2025-47691Network attack vector

Administrator code execution via incomplete callback blacklist

Published May 7, 2025 · Updated Apr 28, 2026

Code injection in Ultimate Member 2.10.3 and earlier allows remote authenticated users with Administrator access to execute PHP functions. Dynamic callback validation relies on a blacklist that omits callable WordPress functions, so attacker-selected function names can reach PHP invocation. Administrator-level access is required, and successful calls execute code in the WordPress server process.

CVSS severity5.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Ultimate Member 2.10.3 and earlier allows remote authenticated users with Administrator access to execute PHP functions. Dynamic callback validation relies on a blacklist that omits callable WordPress functions, so attacker-selected function names can reach PHP invocation. Administrator-level access is required, and successful calls execute code in the WordPress server process.

The record

CVE
CVE-2025-47691
Published
May 7, 2025
Updated
Apr 28, 2026
Vendor
Ultimate Member Group Ltd
Product
Ultimate Member
Classifications
CWE-94, CAPEC-242, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 7, 2025CVE 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=0 <=2.10.3 changes=[{"at":"2.10.4","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Ultimate Member Group Ltd · Ultimate Memberversion=0 <=2.10.3 changes=[{"at":"2.10.4","status":"unaffected"}]

Published CVSS scores

5.5PatchstackCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L
7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CAPEC-242Code 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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