The Memos application, up to version v0.24.3, allows for the embedding of markdown images…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure, Cross-site scripting
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-200 and CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | github.com/usememos/memos (Go) | before 0.24.4 | 0.24.4 | Patch available | GHSA-hfcf-79gh-f3jc |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/usememos/memos (Go) Vendor— Affected before 0.24.4 Fixed in 0.24.4 Patch available GHSA-hfcf-79gh-f3jc
Remediation
- Fix · GHSA-hfcf-79gh-f3jc github.com/usememos/memos (Go) Fixed in 0.24.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-50738
- 2026-10-03 Alias added: GHSA-hfcf-79gh-f3jc
References
More usememos Memos vulnerabilities
- TI-2025-16796 elestio memos v0.23.0 is vulnerable to Server-Side Request Forgery (SSRF) due to… CVSS 3.1CRITICAL 9.8
- TI-2023-04328 Improper Access Control in usememos/memos CVSS 3.1CRITICAL 9.8
- TI-2022-04459 Cross-site Scripting (XSS) - Stored in usememos/memos CVSS 3.1CRITICAL 9.0
- TI-2022-04458 Cross-site Scripting (XSS) - Stored in usememos/memos CVSS 3.1CRITICAL 9.0
- TI-2022-04283 Authorization Bypass Through User-Controlled Key in usememos/memos CVSS 3.1CRITICAL 9.8
- TI-2024-27722 GHSL-2024-034: memos CORS Misconfiguration in server.go CVSS 3.1HIGH 8.1
Sources
- CVE-2025-50738 · CVE Program
- CVE-2025-50738 · NVD
- FIRST EPSS
- GHSA-hfcf-79gh-f3jc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences