PHP object injection in WordPress Tainacan plugin
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.
Summary
Tainacan, a WordPress plugin from Tainacan Community, is affected through version 1.3.0. It deserializes untrusted data (CWE-502), which lets an attacker inject PHP objects. An attacker with high privileges on the network can exploit this to affect confidentiality, integrity and availability.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Deserialization of Untrusted Data vulnerability in Tainacan Community Tainacan tainacan allows Object Injection.This issue affects Tainacan: from n/a through 1.3.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 |
|---|---|---|---|---|---|
| Tainacan Community | Tainacan | up to 1.3.0 | — | No fix listed | CNA |
- Tainacan VendorTainacan Community Affected up to 1.3.0 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for Tainacan.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-11 Threatist record created from CVE-2026-94676
- 2026-10-11 Alias added: GHSA-g3x7-hv56-2x6h
References
Sources
- CVE-2026-94676 · CVE Program
- CVE-2026-94676 · NVD
- FIRST EPSS
- GHSA-g3x7-hv56-2x6h · 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