CVE-2026-9053
Apache HTML File Upload Default Path Disclosure
Description
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.
INFO
Published Date :
May 22, 2026, 4:16 a.m.
Last Modified :
May 22, 2026, 4:16 a.m.
Remotely Exploit :
Yes !
Source :
1d66c9f9-fff2-411a-aa19-ca6312fa25e9
Affected Products
The following products are affected by CVE-2026-9053
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | 1d66c9f9-fff2-411a-aa19-ca6312fa25e9 | ||||
| CVSS 4.0 | MEDIUM | 1d66c9f9-fff2-411a-aa19-ca6312fa25e9 |
Solution
- Review and sanitize file upload form default values.
- Implement strict server-side validation for file paths.
- Avoid using user-controlled data in default paths.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-9053.
| URL | Resource |
|---|---|
| https://git.9front.org/plan9front/9front/d145acc9ef0da47131af6ad94e87264e04870d47/commit.html |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-9053 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-9053
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-9053 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-9053 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 1d66c9f9-fff2-411a-aa19-ca6312fa25e9
May. 22, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:A/V:X/RE:L/U:Amber Added Reference https://git.9front.org/plan9front/9front/d145acc9ef0da47131af6ad94e87264e04870d47/commit.html