HOMEVULNERABILITIESCVE-2009-4531
MEDIUMPOC

CVE-2009-4531

CWE-200Published: December 31, 2009· Updated: Jun 16, 2026

5.0
CVSS v3.1

Official Description

httpdx 1.4.4 and earlier allows remote attackers to obtain the source code for a web page by appending a . (dot) character to the URI.

NVD Source

Technical Analysis

CVE-2009-4531 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.

A proof-of-concept (PoC) exploit exists for CVE-2009-4531. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.

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

jasper1 product(s)
httpdx
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
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

ADVISORYhttp://secunia.com/advisories/37013
ADVISORYhttp://secunia.com/advisories/37013

All References (12)

→
http://freetexthost.com/eiyfyt0km5Exploit · URL Repurposed
→
http://packetstormsecurity.org/0910-exploits/httpdx-disclose.txtExploit
→
http://pocoftheday.blogspot.com/2009/10/httpdx-144-remote-arbitrary-source.htmlExploit
→
http://secunia.com/advisories/37013Vendor Advisory
→
http://www.osvdb.org/58857
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/53733
→
http://freetexthost.com/eiyfyt0km5Exploit · URL Repurposed
→
http://packetstormsecurity.org/0910-exploits/httpdx-disclose.txtExploit
→
http://pocoftheday.blogspot.com/2009/10/httpdx-144-remote-arbitrary-source.htmlExploit
→
http://secunia.com/advisories/37013Vendor Advisory
→
http://www.osvdb.org/58857
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/53733

Quick Facts

CVE IDCVE-2009-4531
CVSS Score5.0 / 10
SeverityMEDIUM
WeaknessCWE-200
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedDec 31, 2009

Related CVEs (CWE-200)

CVE-2026-27604
10.0
CVE-2008-1155
10.0
CVE-2011-3497
10.0
CVE-2020-13702
10.0
CVE-2025-22612
10.0
CVE-2008-0082
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2009-4531 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.
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