CVE-2021-29047
Liferay Portal and Liferay DXP Fails to Invalidate CAPTCHA Answers After Use
7.5
HIGH
CVSS 3.1
EPSS 0.29%
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.
How to fix CVE-2021-29047
To remediate CVE-2021-29047, upgrade the affected package to a fixed version below.
- —upgrade to 7.3.10.fp1 or later
- —upgrade to 7.3.6 or later
Is CVE-2021-29047 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 7.3.10.fp1
- >= 7.3.4, < 7.3.6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |