CVE-2026-107356: File Upload RCE (CVSS 8.8)

Description

U.S. Geological Survey Area Species Management Research Program (ARMI) accepts any uploaded file and stores the file under '/uploads/{upload-file}'. A remote, authenticated attacker could upload a crafted PHP file that executes and returns command output from the server when accessed. Fixed on 2026-07-20.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0074

Probability of exploitation

0.55%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-434 Unrestricted Upload

References

Other References

https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-313-01.json https://www.cve.org/CVERecord?id=CVE-2026-107356

Frequently Asked Questions

What is CVE-2026-107356? +

U.S. Geological Survey Area Species Management Research Program (ARMI) accepts any uploaded file and stores the file under '/uploads/{upload-file}'. A remote, authenticated attacker could upload a crafted PHP file that executes and returns command output from the server when accessed. Fixed on 2026-07-20. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-107356? +

CVE-2026-107356 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0074, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-107356? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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