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Status published
High
CVE-2021-29047
The SimpleCaptcha implementation in Liferay Portal 7.3.4, 7.3.5 and Liferay...
Vulnerability Description
The SimpleCaptcha implementation in Liferay Portal 7.3.4, 7.3.5 and Liferay DXP 7.3 before fix pack 1 does not invalidate CAPTCHA answers after it is used, which allows remote attackers to repeatedly perform actions protected by a CAPTCHA challenge by reusing the same CAPTCHA answer.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
liferay
View all reports →Affected Software
dxp, liferay portal
Vulnerable Versions:
0, 7.3, 7.3.4, 7.3.5
Timeline
Official Publish:
May 16th, 2021
Last Modified:
July 9th, 2026
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.