SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-23837

A time-based blind SQL injection was identified in the selected_folder HTTP request body parameter for the acp interface.

MEDIUM 6.5EPSS 1.48%

Does this matter?

Lower severity and a low EPSS score (1.48%). Track it; it rarely justifies an emergency change on its own.

Description

An issue was discovered in flatCore before 2.0.0 build 139. A time-based blind SQL injection was identified in the selected_folder HTTP request body parameter for the acp interface. The affected parameter (which retrieves the file contents of the specified folder) was found to be accepting malicious user input without proper sanitization, thus leading to SQL injection. Database related information can be successfully retrieved.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
1.48% probability · 74th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-89
Affected
flatcore/flatcore
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 1.48%26 October 202626 October 2026

EPSS 1.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.