MEDIUM
CVE-2005-4687
NVD-CWE-OtherPublished: December 31, 2005· Updated: Jun 16, 2026
5.0
CVSS v3.1
Official Description
PunBB 1.2.9, used alone or with F-ART BLOG:CMS, may trust a client's IP address as specified in the X-Forwarded-For HTTP header rather than the TCP/IP stack, which allows remote attackers to misrepresent their IP address by sending a modified header.
Technical Analysis
CVE-2005-4687 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityP
IntegrityNone
AvailabilityNone
AV:N/AC:L/Au:N/C:P/I:N/A:N
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (8)
→
http://secunia.com/advisories/17425Patch · Vendor Advisory
→
http://secunia.com/advisories/17433Patch · Vendor Advisory
→
http://secunia.com/advisories/17425Patch · Vendor Advisory
→
http://secunia.com/advisories/17433Patch · Vendor Advisory
Quick Facts
CVE IDCVE-2005-4687
CVSS Score5.0 / 10
SeverityMEDIUM
WeaknessNVD-CWE-Other
CISA KEVNo
Affected2 vendor(s)
PublishedDec 31, 2005
Related CVEs (NVD-CWE-Other)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2005-4687 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.