SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-31316

The unprivileged user portal part of CentOS Web Panel is affected by a SQL Injection via the 'idsession' HTTP POST parameter.

CRITICAL 9.8EPSS 13.3%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 13.3%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

The unprivileged user portal part of CentOS Web Panel is affected by a SQL Injection via the 'idsession' HTTP POST parameter.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
13.27% probability · 96th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-89
Affected
control-webpanel/webpanel
Source
cve@mitre.org
EPSS trend
0%8%15%3 November 2026: 13.27%3 November 20263 November 2026

EPSS 13.3% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. 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.