MEDIUM
CVE-2021-33330
NVD-CWE-noinfoPublished: August 3, 2021· Updated: Jun 17, 2026
4.3
CVSS v3.1
Official Description
Liferay Portal 7.2.0 through 7.3.2, and Liferay DXP 7.2 before fix pack 9, allows access to Cross-origin resource sharing (CORS) protected resources if the user is only authenticated using the portal session authentication, which allows remote attackers to obtain sensitive information including the targeted user’s email address and current CSRF token.
Technical Analysis
CVE-2021-33330 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Affected Vendors & Products
liferay2 product(s)
digital experience platformliferay portal
Source: NVD CPE · 2 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (4)
→
https://issues.liferay.com/browse/LPE-17127Patch · Vendor Advisory
→
https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/120747720Release Notes · Vendor Advisory
→
https://issues.liferay.com/browse/LPE-17127Patch · Vendor Advisory
→
https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/120747720Release Notes · Vendor Advisory
Quick Facts
CVE IDCVE-2021-33330
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected1 vendor(s)
PublishedAug 3, 2021
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-33330 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.