Wechat Broadcast Plugin up to 1.2.0 on WordPress Image.php url path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.0$0-$5k0.00

A vulnerability was found in Wechat Broadcast Plugin up to 1.2.0 on WordPress (WordPress Plugin). It has been rated as critical. This issue affects an unknown functionality of the file Image.php. The manipulation of the argument url 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, and integrity. The summary by CVE is:

The Wechat Broadcast plugin 1.2.0 and earlier for WordPress allows Directory Traversal via the Image.php url parameter.

The bug was discovered 09/19/2018. The weakness was presented 09/24/2018 as not defined mailinglist post (Full-Disclosure). The advisory is shared at seclists.org. The identification of this vulnerability is CVE-2018-16283 since 08/31/2018. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:Image.php it is possible to find vulnerable targets with Google Hacking.

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 (45438).

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 8.0

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/31/2018 🔍
09/19/2018 +19 days 🔍
09/24/2018 +4 days 🔍
09/24/2018 +0 days 🔍
09/25/2018 +1 days 🔍
05/17/2023 +1695 days 🔍

Sourcesinfo

Advisory: 14
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-16283 (🔍)
X-Force: 150202

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/25/2018 12:41
Updated: 05/17/2023 18:34
Changes: 09/25/2018 12:41 (46), 03/27/2020 07:14 (10), 05/17/2023 18:26 (3), 05/17/2023 18:34 (12)
Complete: 🔍

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