CVE-2026-9053

6.9 mediumEPSS 0.3%

Medium (6.9). EPSS 0.3% chance of exploitation in the next 30 days.

Mothra would respect a default value given by a website for HTML file upload forms. An attacker could craft a website with a malicious default file path, and then conceal this form element.

Severity

CVSS 4.0

6.9 medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:P/AU:N/R:A/RE:L/U:Amber

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2026-05-22
Modified: 2026-07-23
Record from: the NVD, synced 2026-10-19

References

https://git.9front.org/plan9front/9front/d145acc9ef0da47131af6ad94e87264e04870d47/commit.html

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