CVE-2023-3460
CriticalExploitedPublic exploitThe Ultimate Member WordPress plugin before 2.6.7 does not prevent visitors from creating user accounts with arbitrary capabilities, effectively allowing attackers to create administrator accounts at will.
Published Jul 4, 2023 · Updated Oct 8, 2026 · Also known as 4b0e763e-f03e-41fb-8c6c-4de5d3acae00
Key Facts
Patch immediately- CVE-2023-3460 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Ultimate Member (Ultimatemember).
- It is exploited in the wild, listed in Industry KEV feed since Jun 29, 2023. Public exploit code is available.
- EPSS estimates a 72% probability of exploitation in the next 30 days.
- Fixed versions are available, including Ultimate Member 2.6.7.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
72%
Higher than 99.4% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2023-3460 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
The Ultimate Member WordPress plugin before 2.6.7 does not prevent visitors from creating user accounts with arbitrary capabilities, effectively allowing attackers to create administrator accounts at will. This is actively being exploited in the wild.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jun 29, 2023 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Ultimate MemberUltimatemember | See advisory | 2.6.7 |
Patched Releases
Ultimate Member
2.6.7
Timeline
Added to Industry KEV feed
Jun 29, 2023
Publicly disclosed
Jul 4, 2023
Last updated
Oct 8, 2026
Weakness Type
- CWE-266 Incorrect Privilege Assignment
References
- advisoryhttps://blog.wpscan.com/hacking-campaign-actively-exploiting-ultimate-member-plugin/
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3460.json
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2023-3460
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/4b0e763e-f03e-41fb-8c6c-4de5d3acae00?source=api-prod
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/4b0e763e-f03e-41fb-8c6c-4de5d3acae00?source=api-scan
FAQ
Common Questions.
The Ultimate Member WordPress plugin before 2.6.7 does not prevent visitors from creating user accounts with arbitrary capabilities, effectively allowing attackers to create administrator accounts at will.
Affected: Ultimate Member (Ultimatemember). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Jun 29, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Ultimate Member 2.6.7.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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