Phphtmledit CuteEditor up to 6.6 HTML File ServerMapPath path traversal

Summaryinfo

A vulnerability was found in Phphtmledit CuteEditor up to 6.6 and classified as critical. This vulnerability affects the function ServerMapPath of the component HTML File Handler. Such manipulation leads to path traversal. This vulnerability is traded as CVE-2021-47751. The attack may be launched remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Phphtmledit CuteEditor up to 6.6. Affected by this issue is the function ServerMapPath of the component HTML File Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. CVE summarizes:

CuteEditor for PHP (now referred to as Rich Text Editor) 6.6 contains a directory traversal vulnerability in the browse template feature that allows attackers to write files to arbitrary web root directories. Attackers can exploit the ServerMapPath() function by renaming uploaded HTML files using directory traversal sequences to write files outside the intended template directory.

The weakness was shared by Stefan Hesselman as 50994. The advisory is shared for download at exploit-db.com. This vulnerability is handled as CVE-2021-47751 since 01/10/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1006.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (50994). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• Phphtmledit

Name

• CuteEditor

Version

• 6.0
• 6.1
• 6.2
• 6.3
• 6.4
• 6.5
• 6.6

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion