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OpenAdvisories
Critical · 9.8 Public exploit CVE-2025-50738 EUVD-2025-23004GHSA-hfcf-79gh-f3jcGO-2025-3831

Memos has Cross-Site Scripting (XSS) Vulnerability in Image URLs

Published Jul 29, 2025 · Updated Aug 22, 2025 · Assigned by mitre

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.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
SLES 15 SP6 govulncheck-vulndb 0.0.20250814T182633-150000.1.98.1 SUSE-SU-2025:02912-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed govulncheck-vulndb 0.0.20250811T192933-1.1 openSUSE-SU-2025:15434-1
openSUSE Leap 15.6 govulncheck-vulndb 0.0.20250814T182633-150000.1.98.1 SUSE-SU-2025:02912-1

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/usememos/memos < 0.24.4 0.24.4 GHSA-hfcf-79gh-f3jc

Advisories 2

References