🛡️ CVE-2021-33320 — com.liferay.flags.taglib

⚪ Unknown ✅ No Known Exploit CWE-770 OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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

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

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability low.

Weakness class

CVE-2021-33320 is classified as CWE-770: Allocation of Resources Without Limits. Resources are allocated on request with no cap, so a client can exhaust them.

Affected software

CVE-2021-33320 is recorded against 2 packages.

  • com.liferay.portal:release.dxp.bom (from 7.2.0 up to 7.2.10.fp5)
  • com.liferay:com.liferay.flags.taglib (fixed in 5.0.11)

Timeline and source

Published on 24 May 2022 and last revised on 14 July 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Package)
issues.liferay.com (Web)
liferay.dev (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE CWE-770
Public Exploit ✅ No
Source OSV
Published 2022-05-24
Updated 2026-08-12
Modified 2025-07-14
Fix URL N/A

Affected Packages

Software From version Fixed in
com.liferay:com.liferay.flags.taglib — 5.0.11
com.liferay.portal:release.dxp.bom 7.2.0 7.2.10.fp5

References

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