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VulnerabilityPublished

CVE-2026-121874: Post Duplicator (WordPress plugin) · Incorrect Authorization

Affects Post Duplicator (WordPress plugin)Source CVE Database V5

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Not known to be exploited : upgrade to 3.0.18 soon.

Data as of 9 Nov 2026, 06:36 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 3.0.18

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.

What to do

Upgrade Post Duplicator (WordPress plugin) to 3.0.18.

Affected software

ProductAffectedFixed in
Post DuplicatorAffected
  • <3.0.18
Fixed in
  • 3.0.18

AI-suggested

Upgrade the Post Duplicator plugin to version 3.0.18 or later, where this authorization flaw is fixed. No other mitigation is necessary as the fix addresses the root cause.

Description

A vulnerability in the Post Duplicator WordPress plugin before version 3.0.18 allows a site administrator on a multisite network who is not a Super Admin to overwrite arbitrary site options, including role definitions. This flaw enables privilege escalation by granting network-management capabilities improperly.

References

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