VDB-248247 · Submit #251277 · CVE-2023-6887

saysky ForestBlog up to 20220630 Image Upload /admin/upload/img filename unrestricted upload

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.3	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in saysky ForestBlog up to 20220630. Affected is an unknown function of the file /admin/upload/img of the component Image Upload Handler. Performing a manipulation of the argument filename results in unrestricted upload. This vulnerability is reported as CVE-2023-6887. The attack is possible to be carried out remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability classified as critical has been found in saysky ForestBlog up to 20220630. This affects some unknown processing of the file /admin/upload/img of the component Image Upload Handler. The manipulation of the argument filename with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 12/16/2023. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2023-6887. Technical details and a public exploit are known. The attack technique deployed by this issue is T1608.002 according to MITRE ATT&CK.

The exploit is shared for download at github.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.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

saysky

Name

ForestBlog

Version

20220630

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 6.3
CNA Vector (VulDB): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/16/2023 🔍
12/16/2023 +0 days 🔍
12/16/2023 +0 days 🔍
01/11/2024 +26 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2023-6887 (🔍)
GCVE (CVE): GCVE-0-2023-6887
GCVE (VulDB): GCVE-100-248247
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 12/16/2023 09:43
Updated: 01/11/2024 18:54
Changes: 12/16/2023 09:43 (42), 01/11/2024 18:47 (2), 01/11/2024 18:54 (28)
Complete: 🔍
Submitter: daylightqc
Cache ID: 216::103

Submitinfo

Accepted

Submit #251277: saysky ForestBlog 2023-12-13 Arbitrary file upload (by daylightqc)