CVE-2023-31216Network attack vector

Unauthorized state changes via forged browser requests

Published Jul 17, 2023 · Updated Apr 28, 2026

Cross-site request forgery in Ultimate Member 2.6.0 and earlier allows remote attackers to perform unauthorized actions via crafted requests. The public CNA record and its sole Patchstack reference do not identify the affected endpoint, parameter, state-changing action, or missing request validation. Exploitation requires a site user to interact with attacker-controlled content; the resulting low-integrity change is unspecified.

CVSS severity4.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Ultimate Member 2.6.0 and earlier allows remote attackers to perform unauthorized actions via crafted requests. The public CNA record and its sole Patchstack reference do not identify the affected endpoint, parameter, state-changing action, or missing request validation. Exploitation requires a site user to interact with attacker-controlled content; the resulting low-integrity change is unspecified.

The record

CVE
CVE-2023-31216
Published
Jul 17, 2023
Updated
Apr 28, 2026
Vendor
Ultimate Member Group Ltd
Product
Ultimate Member
Classifications
CWE-352, CAPEC-62
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 17, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=n/a <=2.6.0 changes=[{"at":"2.6.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ultimate Member Group Ltd · Ultimate Memberversion=n/a <=2.6.0 changes=[{"at":"2.6.1","status":"unaffected"}]

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.3PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

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-352Cross-Site Request Forgery (CSRF)
CAPEC-62Cross Site Request Forgery

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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