cbcvebase.
CVE-2012-10034
published 2025-08-05

CVE-2012-10034: 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…

PriorityP355high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EXPLOIT
EPSS
1.28%
66.3th percentile
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

2 ranges
VendorProductVersion rangeFixed in
clansphere_projectclansphere——
csphereclansphere——

Detection & IOCsextracted from sources · hover to see the quote

cookiecs_lang↗
command%00↗
  • →Monitor HTTP requests containing directory traversal sequences (e.g., ../../../) within the cs_lang cookie or parameter value, which is the attack vector for this LFI vulnerability. ↗
  • →Detect null byte injection (%00) appended to the cs_lang cookie/parameter value, used to bypass file extension enforcement on ClanSphere 2011.3. ↗
  • →Alert on requests to ClanSphere where the cs_lang cookie contains path traversal sequences targeting files outside the web root (e.g., /etc/passwd, sensitive config files). ↗
  • ·The vulnerability is specific to ClanSphere version 2011.3. Ensure detection rules are scoped to installations running this version to reduce false positives. ↗
  • ·The cs_lang parameter is exploitable both as a cookie and as a direct HTTP parameter; detection logic should cover both delivery mechanisms. ↗

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv4.08.7HIGHCVSS: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
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