CVE-2025-50738: Github.com/usememos/memos Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-hfcf-79gh-f3jc
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CWE-79 CWE-200
Published
Advisory Summary

CVE-2025-50738 is a MODERATE cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Github.com/usememos/memos libraries in the Go ecosystem. The issue involves memos has cross-site scripting (xss) vulnerability in image urls. Remediation is available by upgrading affected packages to version 0.24.4.

CVE-2025-50738 at a Glance

CVE Identifier CVE-2025-50738
GHSA Identifier GHSA-hfcf-79gh-f3jc
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Github.com/usememos/memos
Package Ecosystem Go
Published Date
Last Updated

How to Fix CVE-2025-50738

To remediate this vulnerability, upgrade all affected Github.com/usememos/memos dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/usememos/memos fixed: 0.24.4 
Upgrade github.com/usememos/memos to 0.24.4
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/usememos/memos

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-50738, inspect your project dependencies for Github.com/usememos/memos:

inspect dependencies for github.com/usememos/memos

Analyze the terminal output to locate any version of Github.com/usememos/memos in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.24.4), 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 Github.com/usememos/memos, 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

The Memos application, up to version v0.24.3, allows for the embedding of markdown images with arbitrary URLs. When a user views a memo containing such an image, their browser automatically fetches the image URL without explicit user consent or interaction beyond viewing the memo. This can be exploited by an attacker to disclose the viewing user's IP address, browser User-Agent string, and potentially other request-specific information to the attacker-controlled server, leading to information disclosure and user tracking.

CVE-2025-50738 Affected Github.com/usememos/memos Versions

1 component(s)
Fixed Versions:
0.24.4
Product / Package Ecosystem Affected Versions Fixed Version
github.com/usememos/memos
golang/github.com/usememos/memos
Go
< 0.24.4
0.24.4

References

NVD — CVE-2025-50738 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-50738
Github.com/usememos/memos Source Repository REPOSITORY
https://github.com/usememos/memos/issues/4707#issuecomment-2898504237
Security Fix Commit FIX COMMIT
https://github.com/usememos/memos/commit/46d5307d7f210067b46e07400a728fa9095803d9
Github.com/usememos/memos Source Repository REPOSITORY
https://github.com/fai1424/Vulnerability-Research/tree/main/CVE-2025-50738
Github.com/usememos/memos Source Repository REPOSITORY
https://github.com/usememos/memos

Frequently Asked Questions

What is CVE-2025-50738?
CVE-2025-50738 is a security vulnerability in Github.com/usememos/memos involving Memos has Cross-Site Scripting (XSS) Vulnerability in Image URLs under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Github.com/usememos/memos versions are affected?
Affected versions include releases prior to 0.24.4 across affected packages: github.com/usememos/memos.
What version fixes CVE-2025-50738?
Upgrading to 0.24.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/usememos/memos affected?
Yes, github.com/usememos/memos is affected in releases prior to 0.24.4. Upgrade your dependency to 0.24.4 or later.
What CWE is associated with CVE-2025-50738?
CVE-2025-50738 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (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.).
How can I check Go dependencies for CVE-2025-50738?
Run the dependency tree command: 'inspect dependencies for github.com/usememos/memos'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-hfcf-79gh-f3jc",
  "modified" : "2025-08-22T21:08:25Z",
  "published" : "2025-07-29T15:31:50Z",
  "aliases" : [ "CVE-2025-50738" ],
  "summary" : "Memos has Cross-Site Scripting (XSS) Vulnerability in Image URLs",
  "details" : "The Memos application, up to version v0.24.3, allows for the embedding of markdown images with arbitrary URLs. When a user views a memo containing such an image, their browser automatically fetches the image URL without explicit user consent or interaction beyond viewing the memo. This can be exploited by an attacker to disclose the viewing user's IP address, browser User-Agent string, and potentially other request-specific information to the attacker-controlled server, leading to information disclosure and user tracking.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/usememos/memos"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.24.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-50738"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/usememos/memos/issues/4707#issuecomment-2898504237"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/usememos/memos/commit/46d5307d7f210067b46e07400a728fa9095803d9"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/fai1424/Vulnerability-Research/tree/main/CVE-2025-50738"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/usememos/memos"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-07-29T22:09:45Z",
    "nvd_published_at" : "2025-07-29T15:15:35Z"
  }
}