SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-33990

Liferay Portal 6.2.5 allows Command=FileUpload&Type=File&CurrentFolder=/ requests when frmfolders.html exists.

EXPLOITCRITICAL 9.8EPSS 11.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 11.9%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

Liferay Portal 6.2.5 allows Command=FileUpload&Type=File&CurrentFolder=/ requests when frmfolders.html exists. NOTE: The vendor disputes this issue because the exploit reference link only shows frmfolders.html is accessible and does not demonstrate how an unauthorized user can upload a file.

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
11.92% probability · 96th percentile
Public exploits
1 in Exploit-DB · first 5 April 2023
CISA KEV
Not listed
Weakness
CWE-281, CWE-78
Affected
liferay/liferay portal
Source
cve@mitre.org
EPSS trend
0%8%15%26 October 2026: 11.92%26 October 202626 October 2026

EPSS 11.9% since 26 October 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.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-51244source ↗Liferay Portal 6.2.5 - Insecure Permissionsjava · Fu2x2000webapps5 April 2023no

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