CVE-2025-50738

Aliases:GHSA-hfcf-79gh-f3jcGO-2025-3831
Advisory lineage Upstream: 0 Downstream: 2
Modified
Published: 29 Jul 2025, 00:00
Last modified:22 Aug 2025, 15:36

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (cve.org)
EPSS Score
6.98% LOW
7% probability +4.32%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

29 Jul 2025, 00:00
Published
Vulnerability first disclosed
22 Aug 2025, 15:36
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v4.0•MEDIUM•Score: 6.3CVSS: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
  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 6.98%• Percentile: 92%

Techniques & Countermeasures

  • CWE-200•Exposure of Sensitive Information to an Unauthorized Actor

    The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Affected Systems

  • github.com/usememos•memos

    < 0.24.4

  • usememos•memos

    ≤ 0.24.3

References (6)