Post Duplicator < 3.0.15 - Contributor+ PHP Object Injection via customMetaData
Priority HIGH 67Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
The Post Duplicator WordPress plugin before 3.0.15 does not safely handle custom meta-data during post duplication, storing attacker-supplied serialized values without the WordPress meta API's double-serialization protection, allowing users with Contributor-level access and above to inject a PHP Object.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00539 45th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Post Duplicator (Unknown): 3.0.15
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Post Duplicator | before 3.0.15 | 3.0.15 | Patch available | CNA |
- Post Duplicator VendorUnknown Affected before 3.0.15 Fixed in 3.0.15 Patch available CNA
Remediation
- Fix · CNA Post Duplicator (Unknown) Fixed in 3.0.15
Timeline
- 2026-10-02 Threatist record created from CVE-2026-10749
- 2026-10-03 Alias added: GHSA-57q8-6wvw-p94h
References
Sources
- CVE-2026-10749 · CVE Program
- CVE-2026-10749 · NVD
- FIRST EPSS
- GHSA-57q8-6wvw-p94h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences