How severe is CVE-2020-11807?

CVE-2020-11807 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-11807 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11807?

CVE-2020-11807 affects Sourcefabric Newscoop. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11807?

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-2020-11807 published?

CVE-2020-11807 was published on 2020-05-19 and last updated on 2026-06-17.

CVE-2020-11807

CVE-2020-11807 is a high-severity vulnerability in Sourcefabric Newscoop with a CVSS 3.x base score of 7.8. 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-434.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Sourcefabric Newscoop
Published: 2020-05-19
Last modified: 2026-06-17

Description

Because of Unrestricted Upload of a File with a Dangerous Type, Sourcefabric Newscoop 4.4.7 allows an authenticated user to execute arbitrary PHP code (and sometimes terminal commands) on a server by making an avatar update and then visiting the avatar file under the /images/ path.

Frequently asked questions

What is CVE-2020-11807?: Because of Unrestricted Upload of a File with a Dangerous Type, Sourcefabric Newscoop 4.4.7 allows an authenticated user to execute arbitrary PHP code (and sometimes terminal commands) on a server by making an avatar update and then visiting the avatar file under the /images/ path.
How severe is CVE-2020-11807?: CVE-2020-11807 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-11807 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11807?: CVE-2020-11807 affects Sourcefabric Newscoop. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11807?: 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-2020-11807 published?: CVE-2020-11807 was published on 2020-05-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sourcefabric:newscoop:4.4.7:*:*:*:*:*:*:*

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