Vulnerability · CVE-2026-123751
Unrestricted Upload of File with Dangerous Type
Published Nov 7, 2026 · catalog updated Nov 7, 2026 · WP Duplicate
Last checked Nov 9, 2026. A connected source was read within the last 7 days.
Patch now
CVE-2026-123751 is in the CISA known-exploited catalog. Confirm WP Duplicate against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- Severity
- Unknown—
- Known exploitation
- CISA KEV and VulnCheck KEV
- EPSS
- 0.28%
- Remediation
- Remediation guidance
- Affected products
- vendor revmakx WP Duplicate
The WP Duplicate WordPress plugin through 1.1.11 does not properly verify a request authentication value and does not validate the path or type of uploaded files, making it possible for unauthenticated attackers to write arbitrary files to the server and achieve remote code execution. This vulnerability is being actively exploited in the wild.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor revmakx WP Duplicateversion unspecified
How to fix CVE-2026-123751
Vendor action
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Version check
No version range is stored, so an installed version cannot be checked on this page.
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
CVE-2026-123751 is in the CISA known-exploited catalog. Confirm WP Duplicate against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Which versions are affected?
Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
What should an analyst verify?
No weakness class is stored. EPSS 0.28%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Nov 7, 2026 · CISA KEV
Known exploited
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Nov 9, 2026 · OpenCVE
Detected
CVE-2026-123751 is named on the public OpenCVE page.
Sources
- CVE.orgVulnerability recordCVE-2026-123751
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-123751
30-day exploitation probability 0.28%
first.org - OpenCVEVendor advisoryCVE-2026-123751
CVE-2026-123751 is named on the public OpenCVE page.
opencve.io - VulnCheck KEVConfirmed exploitationCVE-2026-123751
The WP Duplicate WordPress plugin through 1.1.11 does not properly verify a request authentication value and does not validate the path or type of uploaded files, making it possible for unauthenticated attackers to write arbitrary files to the server and achieve remote code execu
vulncheck.com
References
Freshness
Last verified in this catalog Nov 9, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- VulnCheck KEVNov 9, 2026
- FIRST EPSSNov 9, 2026
- CVE.orgNov 9, 2026
- OpenCVENov 9, 2026