Unauthenticated file upload via publicly exposed nonce
Published Aug 28, 2026 · Updated Aug 28, 2026
Missing authorization in Tammersoft Shared Files before 1.7.67 and Shared Files PRO before 1.7.70 allows remote attackers to upload files. The unauthenticated upload handler checks only a nonce published on public pages and writes WordPress-permitted MIME types to a publicly accessible directory while returning the server's absolute path. No account is required, but WordPress MIME restrictions block executable PHP uploads, bounding the impact to stored allowed file types and path disclosure.
Summary
What happened
Missing authorization in Tammersoft Shared Files before 1.7.67 and Shared Files PRO before 1.7.70 allows remote attackers to upload files. The unauthenticated upload handler checks only a nonce published on public pages and writes WordPress-permitted MIME types to a publicly accessible directory while returning the server's absolute path. No account is required, but WordPress MIME restrictions block executable PHP uploads, bounding the impact to stored allowed file types and path disclosure.
The record
- CVE
- CVE-2026-12514
- Published
- Aug 28, 2026
- Updated
- Aug 28, 2026
- Vendor
- Tammersoft
- Product
- Shared Files PRO
- Classifications
- CWE-862, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 28, 2026CVE publishedPublication date reported by the CVE source.
- Aug 28, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <1.7.70
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- WPScan proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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