CVE-2023-41318: matrix-media-repo Unsafe Media Served Inline On Vulnerability
MODERATECVE-2023-41318 is a MODERATE (CVSS 4.1) unsafe media served inline on vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting matrix-media-repo libraries in the Go ecosystem. The issue involves unsafe media served inline on download endpoints. Remediation is available by upgrading affected packages to version 1.3.0.
CVE-2023-41318 at a Glance
Security Impact
CVSS: 4.1
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N).
How to Fix CVE-2023-41318
To remediate this vulnerability, upgrade all affected matrix-media-repo dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/turt2live/matrix-media-repo to 1.3.0Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/turt2live/matrix-media-repoHow to Check if You Are Affected
To determine whether your application is affected by CVE-2023-41318, inspect your project dependencies for matrix-media-repo:
inspect dependencies for github.com/turt2live/matrix-media-repoAnalyze the terminal output to locate any version of matrix-media-repo in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.3.0), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In matrix-media-repo, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2023-41318 Affected matrix-media-repo Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/turt2live/matrix-media-repo
|
Go |
< 1.3.0
|
1.3.0
|
References
Frequently Asked Questions
What is CVE-2023-41318?
Which matrix-media-repo versions are affected?
What version fixes CVE-2023-41318?
Is github.com/turt2live/matrix-media-repo affected?
What is the CVSS score of CVE-2023-41318?
What CWE is associated with CVE-2023-41318?
How can I check Go dependencies for CVE-2023-41318?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-5crw-6j7v-xc72",
"modified" : "2023-09-08T13:18:23Z",
"published" : "2023-09-08T13:18:23Z",
"aliases" : [ "CVE-2023-41318" ],
"summary" : "matrix-media-repo: Unsafe media served inline on download endpoints",
"details" : "### Impact\nA malicious user can upload an SVG image containing JavaScript to their server. When matrix-media-repo is asked to serve that media via the `/_matrix/media/(r0|v3)/download` endpoint, it would be served with a `Content-Disposition` of `inline`. This can allow JavaScript to run in the browser if a client links to the `/download` endpoint directly.\n\nServer operators which do not share a domain between matrix-media-repo and other services are not affected, but are encouraged to upgrade regardless.\n\n### Patches\nhttps://github.com/turt2live/matrix-media-repo/commit/77ec2354e8f46d5ef149d1dcaf25f51c04149137 and https://github.com/turt2live/matrix-media-repo/commit/bf8abdd7a5371118e280c65a8e0ec2b2e9bdaf59 fix the issue. Operators should upgrade to v1.3.0 as soon as possible.\n\n### Workarounds\nThe `Content-Disposition` header can be overridden by the reverse proxy in front of matrix-media-repo to always use `attachment`, defeating this issue at the cost of \"worse\" user experience when clicking download links.\n\n### References\nhttps://developer.mozilla.org/en-US/docs/Web/SVG/Element/script\n\n",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/turt2live/matrix-media-repo"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.3.0"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/turt2live/matrix-media-repo/security/advisories/GHSA-5crw-6j7v-xc72"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-41318"
}, {
"type" : "WEB",
"url" : "https://github.com/turt2live/matrix-media-repo/commit/77ec2354e8f46d5ef149d1dcaf25f51c04149137"
}, {
"type" : "WEB",
"url" : "https://github.com/turt2live/matrix-media-repo/commit/bf8abdd7a5371118e280c65a8e0ec2b2e9bdaf59"
}, {
"type" : "WEB",
"url" : "https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/turt2live/matrix-media-repo"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-79" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2023-09-08T13:18:23Z",
"nvd_published_at" : "2023-09-08T20:15:14Z"
}
}