What is CVE-2020-11807?

CVE-2020-11807 is a high-severity vulnerability in Sourcefabric Newscoop, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.8/10. Published 2020-05-19.

How severe is CVE-2020-11807?

High severity. CVSS v3 base score is 7.8 out of 10.

Arbitrary file upload in Sourcefabric Newscoop

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.

Vulnerability class: Unrestricted File Upload

Published 2020-05-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (49.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Sourcefabric Newscoop — versions 4.4.7

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

github.com/sourcefabric/Newscoop/blob/3df835637609a5a42530b2a4611177c634ad6274/… (Patch, Third Party Advisory)
gist.github.com/V-Rico/82e9e52ac451dc20eef87b0999b3b1ee (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-11807?: CVE-2020-11807 is a high-severity vulnerability in Sourcefabric Newscoop, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.8/10. Published 2020-05-19.
How severe is CVE-2020-11807?: High severity. CVSS v3 base score is 7.8 out of 10.