Zella Theme < 2.6.3 - Unauthenticated Arbitrary File Upload
Priority MEDIUM 50CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-434.
Summary
The Zella Theme WordPress theme before 2.6.3 does not perform any capability or nonce check on one of its font upload actions, which is available to unauthenticated users, allowing them to upload arbitrary files, including PHP ones, and achieve remote code execution.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00569 47th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Zella Theme (Unknown): 2.6.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 | Zella Theme | before 2.6.3 | 2.6.3 | Patch available | CNA |
- Zella Theme VendorUnknown Affected before 2.6.3 Fixed in 2.6.3 Patch available CNA
Remediation
- Fix · CNA Zella Theme (Unknown) Fixed in 2.6.3
Timeline
- 2026-10-02 Threatist record created from CVE-2026-75873
- 2026-10-03 Alias added: GHSA-7hpq-7jqp-mfrh
References
Sources
- CVE-2026-75873 · CVE Program
- CVE-2026-75873 · NVD
- FIRST EPSS
- GHSA-7hpq-7jqp-mfrh · 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