Broken access control in AWS S3 for WordPress Plugin, Upcasted
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
The AWS S3 for WordPress Plugin (Upcasted) from Upcasted is affected through 3.1.0. The plugin lacks an authorization check (CWE-862), so a user with the Subscriber role can perform actions reserved for higher roles. An authenticated attacker with low privileges can affect confidentiality, integrity and availability, with partial impact on each.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Subscriber Broken Access Control in AWS S3 for WordPress Plugin – Upcasted <= 3.1.0 versions.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for AWS S3 for WordPress Plugin (Upcasted).
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-11 Threatist record created from CVE-2026-62035
- 2026-10-11 Alias added: GHSA-5g33-v9wf-46c9
More upcasted vulnerabilities
- TI-2025-16558 WordPress Upcasted S3 Offload plugin <= 3.0.3 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-62035 · CVE Program
- CVE-2026-62035 · NVD
- FIRST EPSS
- GHSA-5g33-v9wf-46c9 · 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