SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-1000428

flatCore-CMS 1.4.6 is vulnerable to reflected XSS in user_management.php due to the use of $_SERVER['PHP_SELF'] to build links and a stored XSS in the admin log panel by specifying a malformed User-Agent string.

MEDIUM 6.1EPSS 0.84%

Does this matter?

Lower severity and a low EPSS score (0.84%). Track it; it rarely justifies an emergency change on its own.

Description

flatCore-CMS 1.4.6 is vulnerable to reflected XSS in user_management.php due to the use of $_SERVER['PHP_SELF'] to build links and a stored XSS in the admin log panel by specifying a malformed User-Agent string.

CVSS 3.0
6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
0.84% probability · 58th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
flatcore/flatcore-cms
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 0.84%27 October 202627 October 2026

EPSS 0.8% since 27 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.