How severe is CVE-2006-0658?

CVE-2006-0658 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2006-0658 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-0658?

CVE-2006-0658 primarily affects Fckeditor. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-0658?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-0658 published?

CVE-2006-0658 was published on 2006-02-13 and last updated on 2026-06-16.

CVE-2006-0658

CVE-2006-0658 is a medium-severity vulnerability in Fckeditor with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Fckeditor
Published: 2006-02-13
Last modified: 2026-06-16

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.

Frequently asked questions

What is 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.
How severe is CVE-2006-0658?: CVE-2006-0658 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2006-0658 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-0658?: CVE-2006-0658 primarily affects Fckeditor. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-0658?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-0658 published?: CVE-2006-0658 was published on 2006-02-13 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:fckeditor:fckeditor:2.0:*:*:*:*:*:*:*
cpe:2.3:a:fckeditor:fckeditor:2.2:*:*:*:*:*:*:*

More vulnerabilities in Fckeditor

CVE-2009-2265 — High (CVSS 7.5): Multiple directory traversal vulnerabilities in FCKeditor before 2.6.4.1 allow remote attackers to create executable…
CVE-2008-6178 — High (CVSS 7.5): Unrestricted file upload vulnerability in editor/filemanager/browser/default/connectors/php/connector.php in FCKeditor…
CVE-2006-0921 — Medium (CVSS 6.4): Multiple directory traversal vulnerabilities in connector.php in FCKeditor 2.0 FC, as used in products such as RunCMS,…
CVE-2006-2529 — Medium (CVSS 5.0): editor/filemanager/upload/php/upload.php in FCKeditor before 2.3 Beta, when the upload feature is enabled, does not…
CVE-2005-0613 — Medium (CVSS 5.0): Unknown vulnerability in FCKeditor 2.0 RC2, when used with PHP-Nuke, allows remote attackers to upload arbitrary files.
CVE-2009-2324 — Medium (CVSS 4.3): Multiple cross-site scripting (XSS) vulnerabilities in FCKeditor before 2.6.4.1 allow remote attackers to inject…

All CVEs affecting Fckeditor →