QuickShare File Server 1.2.1 Path Traversal RCE
Published Aug 13, 2025
9.4
CRITICALCVSS 4.0
EPSS 1.63%
Description
QuickShare File Server 1.2.1 contains a path traversal vulnerability in its FTP service due to improper sanitation of user-supplied file paths. Authenticated users can exploit this flaw by submitting crafted sequences to access or write files outside the intended virtual directory. When the "Writable" option is enabled (default during account creation), this allows attackers to upload arbitrary files to privileged locations such as system32, enabling remote code execution via MOF injection or executable placement.
Affected products
-
- Version 0StatusaffectedConstraints<1.2.2
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| QuickShareHQ | QuickShare File Server | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Aug 14, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.63% (0.01628) | 75.31th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.49% (0.01485) | 70.55th | v5 (v2026.06.15) |
| Jun 9, 2026 | 74.41% (0.74414) | 98.86th | v4 (v2025.03.14) |
| Apr 29, 2026 | 57.92% (0.57919) | 98.19th | v4 (v2025.03.14) |
| Jan 9, 2026 | 54.75% (0.54748) | 97.94th | v4 (v2025.03.14) |
| Dec 13, 2025 | 63.18% (0.63181) | 98.31th | v4 (v2025.03.14) |
| Oct 20, 2025 | 60.26% (0.60256) | 98.16th | v4 (v2025.03.14) |
| Oct 8, 2025 | 57.34% (0.57339) | 98.03th | v4 (v2025.03.14) |
| Aug 14, 2025 | 0.39% (0.00386) | 58.99th | v4 (v2025.03.14) |
References (6)
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/quickshare_traversal_write.rb exploit
- https://web.archive.org/web/20110814125645/http://www.digital-echidna.org/2011/02/quickshare-file-share-1-2-1-directory-traversal-vulnerability/ technical-descriptionexploit
- https://web.archive.org/web/20120125101026/http://www.quicksharehq.com/blog/quickshare-file-server-1-2-2-released.html vendor-advisorypatch
- https://www.exploit-db.com/exploits/16105 exploit
- https://www.exploit-db.com/exploits/18933 exploit
- https://www.vulncheck.com/advisories/quickshare-file-server-path-traversal-rce third-party-advisory
Change history (0)
No recorded changes yet.