CVE-2025-50738

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published7/29/2025

Last Modified8/22/2025

Sourcenvd

Honeypot Sightings0

Affected Products

usememos:memos

Weaknesses (CWE)

CWE-200

References

https://github.com/fai1424/Vulnerability-Research/tree/main/CVE-2025-50738(cve@mitre.org)

https://github.com/usememos/memos(cve@mitre.org)

https://github.com/usememos/memos/issues/4707#issuecomment-2898504237(cve@mitre.org)

IOC Correlations

No correlations recorded

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