CVE-2025-50738

criticalpriority · track · 11EPSS 0.024 · 84 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

2.38% (84th) EPSS

CVSS 9.8 · critical

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USCWE-200USCWE-79US

exploits (1)

Public proof-of-concept and weaponised exploit code.

tiemio/CVE-2025-50738-PoCStored Cross-Site Scripting in "usememos" via SVGPoC · poc_in_github

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
usememos memos≤ 0.24.3nvdUScpe:2.3:a:usememos:memos:*:*:*:*:*:*:*:*
Go github.com/usememos/memos< 0.24.4osvUSpkg:golang/github.com/usememos/memos

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-hfcf-79gh-f3jcMemos has Cross-Site Scripting (XSS) Vulnerability in Image URLs2025-07-29ghsa · osvUS
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.
GO-2025-3831Memos has Cross-Site Scripting (XSS) Vulnerability in Image URLs in github.com/usememos/memos2025-08-11vendor · osvUS
Memos has Cross-Site Scripting (XSS) Vulnerability in Image URLs in github.com/usememos/memos

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2025-07-29modified 2026-06-17

references (11)

External citations — patches, advisories, analysis.

scry

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