CVE-2020-15840

CVE-2020-15840 is a medium-severity vulnerability in Liferay Digital Experience Platform with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

In Liferay Portal before 7.3.1, Liferay Portal 6.2 EE, and Liferay DXP 7.2, DXP 7.1 and DXP 7.0, the property 'portlet.resource.id.banned.paths.regexp' can be bypassed with doubled encoded URLs.

Frequently asked questions

What is CVE-2020-15840?
In Liferay Portal before 7.3.1, Liferay Portal 6.2 EE, and Liferay DXP 7.2, DXP 7.1 and DXP 7.0, the property 'portlet.resource.id.banned.paths.regexp' can be bypassed with doubled encoded URLs.
How severe is CVE-2020-15840?
CVE-2020-15840 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-15840 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-15840?
CVE-2020-15840 primarily affects Liferay Digital Experience Platform. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-15840?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-15840 published?
CVE-2020-15840 was published on 2020-09-24 and last updated on 2026-06-17.

References

Affected products (5)

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