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Liferay Portal and Liferay DXP vulnerable to email spam via lack of flagging rate

Moderate severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Jul 14, 2025

Package

maven com.liferay.portal:release.dxp.bom (Maven)

Affected versions

>= 7.0.0, < 7.0.10.fp96
>= 7.1.0, < 7.1.10.fp20
>= 7.2.0, < 7.2.10.fp5

Patched versions

7.0.10.fp96
7.1.10.fp20
7.2.10.fp5
maven com.liferay:com.liferay.flags.taglib (Maven)
< 5.0.11
5.0.11

Description

The Flags module before version 5.0.11 in Liferay Portal 7.3.1 and earlier, and Liferay DXP 7.0 before fix pack 96, 7.1 before fix pack 20, and 7.2 before fix pack 5, does not limit the rate at which content can be flagged as inappropriate, which allows remote authenticated users to spam the site administrator with emails

References

Published by the National Vulnerability Database Aug 3, 2021
Published to the GitHub Advisory Database May 24, 2022
Reviewed Jul 14, 2025
Last updated Jul 14, 2025

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(59th percentile)

Weaknesses

Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. Learn more on MITRE.

CVE ID

CVE-2021-33320

GHSA ID

GHSA-wg4x-hf94-fj5v

Source code

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