CVE-2012-4031
MediumPublic exploitMultiple directory traversal vulnerabilities in src/acloglogin.php in Wangkongbao CNS-1000 and 1100 allow remote attackers to read arbitrary files via a ..
Published Jul 17, 2012 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2012-4031 is a medium-severity vulnerability (CVSS 5.0 v2) affecting Cns-1000 (Wangkongbao), Cns-1100 (Wangkongbao).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 52% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
5.0
AV:N/AC:L/Au:N/C:P/I:N/A:N
EPSS (30-day exploit likelihood)
52%
Higher than 98.9% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2012-4031 brief as a PDF
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Description
Multiple directory traversal vulnerabilities in src/acloglogin.php in Wangkongbao CNS-1000 and 1100 allow remote attackers to read arbitrary files via a .. (dot dot) in the (1) lang or (2) langid cookie to port 85.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Cns-1000Wangkongbao | See advisory | n/a |
| Cns-1100Wangkongbao | See advisory | n/a |
Timeline
Publicly disclosed
Jul 17, 2012
Last updated
Apr 28, 2026
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- advisory49776
- exploitExploitDB-19526
- exploit19526
- exploit54267
- other83636
FAQ
Common Questions.
Multiple directory traversal vulnerabilities in src/acloglogin.php in Wangkongbao CNS-1000 and 1100 allow remote attackers to read arbitrary files via a ..
Affected: Cns-1000 (Wangkongbao); Cns-1100 (Wangkongbao). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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