What’s Vulnerable › Vulnerabilities

CVE-2020-11807

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-05-19 · updated 2026-06-17
• Weakness: CWE-434

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.

Affected products

• Sourcefabric Newscoop: 4.4.7

References

• https://gist.github.com/V-Rico/82e9e52ac451dc20eef87b0999b3b1ee
• https://github.com/sourcefabric/Newscoop/blob/3df835637609a5a42530b2a4611177c634ad6274/newscoop/library/Newscoop/Image/ImageService.php#L226
• https://gist.github.com/V-Rico/82e9e52ac451dc20eef87b0999b3b1ee
• https://github.com/sourcefabric/Newscoop/blob/3df835637609a5a42530b2a4611177c634ad6274/newscoop/library/Newscoop/Image/ImageService.php#L226

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