How severe is CVE-2020-12873?

CVE-2020-12873 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-12873 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12873?

CVE-2020-12873 affects Atlassian Alfresco Enterprise Content Management. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-12873?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-12873 published?

CVE-2020-12873 was published on 2021-02-19 and last updated on 2026-06-17.

CVE-2020-12873

CVE-2020-12873 is a high-severity vulnerability in Atlassian Alfresco Enterprise Content Management with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-74.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Atlassian Alfresco Enterprise Content Management
Published: 2021-02-19
Last modified: 2026-06-17

Description

An issue was discovered in Alfresco Enterprise Content Management (ECM) before 6.2.1. A user with privileges to edit a FreeMarker template (e.g., a webscript) may execute arbitrary Java code or run arbitrary system commands with the same privileges as the account running Alfresco.

Frequently asked questions

What is CVE-2020-12873?: An issue was discovered in Alfresco Enterprise Content Management (ECM) before 6.2.1. A user with privileges to edit a FreeMarker template (e.g., a webscript) may execute arbitrary Java code or run arbitrary system commands with the same privileges as the account running Alfresco.
How severe is CVE-2020-12873?: CVE-2020-12873 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-12873 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12873?: CVE-2020-12873 affects Atlassian Alfresco Enterprise Content Management. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-12873?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-12873 published?: CVE-2020-12873 was published on 2021-02-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:atlassian:alfresco_enterprise_content_management:*:*:*:*:community:*:*:*

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