ClanSphere 2011.3 Local File Inclusion via cs_lang Cookie
Published Aug 5, 2025
8.7
HIGHCVSS 4.0
EPSS 1.91%
Description
ClanSphere 2011.3 is vulnerable to a local file inclusion (LFI) flaw due to improper handling of the cs_lang cookie parameter. The application fails to sanitize user-supplied input, allowing attackers to traverse directories and read arbitrary files outside the web root. The vulnerability is further exacerbated by null byte injection (%00) to bypass file extension checks.
Affected products
-
- Version 2011.3StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| ClanSphere Project | ClanSphere | n/a |
|
- 2011.3
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:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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
YesTechnical Impact
PartialDecision
n/aAssessed Aug 6, 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 | 1.91% (0.01907) | 79.02th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.28% (0.01276) | 66.04th | v5 (v2026.06.15) |
| Jun 13, 2026 | 47.12% (0.47120) | 97.76th | v4 (v2025.03.14) |
| Jun 1, 2026 | 42.59% (0.42593) | 97.53th | v4 (v2025.03.14) |
| Apr 21, 2026 | 23.16% (0.23160) | 95.95th | v4 (v2025.03.14) |
| Jan 1, 2026 | 19.00% (0.18998) | 95.16th | v4 (v2025.03.14) |
| Dec 5, 2025 | 26.32% (0.26320) | 96.11th | v4 (v2025.03.14) |
| Oct 8, 2025 | 23.82% (0.23818) | 95.73th | v4 (v2025.03.14) |
| Aug 6, 2025 | 0.07% (0.00068) | 21.39th | v4 (v2025.03.14) |
References (4)
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/scanner/http/clansphere_traversal.rb exploitThird Party Advisory
- https://sourceforge.net/projects/clansphere/ product
- https://www.exploit-db.com/exploits/22181 exploitVDB Entry
- https://www.vulncheck.com/advisories/clansphere-local-file-inclusion-via-cookie third-party-advisoryThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/scanner/http/clansphere_traversal.rb | exploitThird Party Advisory | |
| https://sourceforge.net/projects/clansphere/ | product | |
| https://www.exploit-db.com/exploits/22181 | exploitVDB Entry | |
| https://www.vulncheck.com/advisories/clansphere-local-file-inclusion-via-cookie | third-party-advisoryThird Party Advisory |
Change history (0)
No recorded changes yet.