HOMEVULNERABILITIESCVE-2006-0658
MEDIUMPOC

CVE-2006-0658

NVD-CWE-OtherPublished: February 13, 2006· Updated: Jun 16, 2026

5.0
CVSS v3.1

Official Description

Incomplete blacklist vulnerability in connector.php in FCKeditor 2.0 and 2.2, as used in products such as RunCMS, allows remote attackers to upload and execute arbitrary script files by giving the files specific extensions that are not listed in the Config[DeniedExtensions][File], such as .php.txt.

NVD Source

Technical Analysis

CVE-2006-0658 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-2006-0658. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityNone
IntegrityP
AvailabilityNone
AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected Vendors & Products

fckeditor1 product(s)
fckeditor
Source: NVD CPE · 2 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/18767
ADVISORYhttp://www.vupen.com/english/advisories/2006/0502
ADVISORYhttp://secunia.com/advisories/18767
ADVISORYhttp://www.vupen.com/english/advisories/2006/0502

All References (10)

→
http://retrogod.altervista.org/fckeditor_22_xpl.htmlExploit
→
http://secunia.com/advisories/18767Vendor Advisory
→
http://www.securityfocus.com/archive/1/424708Exploit
→
http://www.vupen.com/english/advisories/2006/0502Vendor Advisory
→
https://www.exploit-db.com/exploits/3702
→
http://retrogod.altervista.org/fckeditor_22_xpl.htmlExploit
→
http://secunia.com/advisories/18767Vendor Advisory
→
http://www.securityfocus.com/archive/1/424708Exploit
→
http://www.vupen.com/english/advisories/2006/0502Vendor Advisory
→
https://www.exploit-db.com/exploits/3702

Quick Facts

CVE IDCVE-2006-0658
CVSS Score5.0 / 10
SeverityMEDIUM
WeaknessNVD-CWE-Other
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedFeb 13, 2006

Related CVEs (NVD-CWE-Other)

CVE-2013-5601
10.0
CVE-2013-5603
10.0
CVE-2013-5599
10.0
CVE-2013-5597
10.0
CVE-2013-5600
10.0
CVE-2013-4265
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2006-0658 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. CVE data is provided under the NVD usage policy.
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