CVE-2006-0658 — 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

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MEDIUM

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

Published Feb 13, 2006

5.0

MEDIUM

CVSS 2.0

EPSS 6.90%

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.

Affected products

Remediation

No remediation recorded yet.

Metrics

6.90% 0.06902

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.06902

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (11 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	6.90% (0.06902)	93.88th	v5 (v2026.06.15)
Jun 15, 2026	6.74% (0.06744)	93.11th	v5 (v2026.06.15)
Mar 30, 2025	5.68% (0.05676)	89.45th	v4 (v2025.03.14)
Mar 29, 2025	7.42% (0.07420)	85.93th	v4 (v2025.03.14)
Mar 17, 2025	5.68% (0.05676)	89.70th	v4 (v2025.03.14)
Dec 12, 2024	3.13% (0.03132)	91.44th	v3 (v2023.03.01)
May 20, 2023	3.13% (0.03132)	89.66th	v3 (v2023.03.01)
Mar 7, 2023	3.51% (0.03511)	90.09th	v3 (v2023.03.01)
Mar 6, 2023	4.48% (0.04482)	88.77th	v2 (v2022.01.01)
Apr 1, 2022	4.48% (0.04482)	87.66th	v2 (v2022.01.01)
Feb 4, 2022	4.48% (0.04482)	71.45th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (5)

http://retrogod.altervista.org/fckeditor_22_xpl.html
x_refsource_MISCExploit
http://secunia.com/advisories/18767
third-party-advisoryx_refsource_SECUNIAVendor Advisory
http://www.securityfocus.com/archive/1/424708
mailing-listx_refsource_BUGTRAQExploit
http://www.vupen.com/english/advisories/2006/0502
vdb-entryx_refsource_VUPENVendor Advisory
https://www.exploit-db.com/exploits/3702
exploitx_refsource_EXPLOIT-DB

Link	Providers	Tags
http://retrogod.altervista.org/fckeditor_22_xpl.html		x_refsource_MISCExploit
http://secunia.com/advisories/18767		third-party-advisoryx_refsource_SECUNIAVendor Advisory
http://www.securityfocus.com/archive/1/424708		mailing-listx_refsource_BUGTRAQExploit
http://www.vupen.com/english/advisories/2006/0502		vdb-entryx_refsource_VUPENVendor Advisory
https://www.exploit-db.com/exploits/3702		exploitx_refsource_EXPLOIT-DB

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Feb 13, 2006

Updated Aug 7, 2024

Reserved Feb 13, 2006

Link CVE-2006-0658

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2006-0658

Red Hat

Severity n/a

Public date n/a

Links CVE-2006-0658