GHSA-hfcf-79gh-f3jc · Severity: medium · Ecosystem: go — Memos has Cross-Site Scripting (XSS) Vulnerability in Image URLs
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.
Conclusion & alert: CVE-2025-50738 is rated High Exploit Risk (87.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 6.98%, 92th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.60% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-25 | 5.38% | 6.98% | +1.60% |
| 2 | 2026-05-04 | 4.66% | 5.38% | +0.72% |
| 3 | 2026-03-24 | — | 4.66% | — |
Full EPSS history (22 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-hfcf-79gh-f3jc · Severity: medium · Ecosystem: go — Memos has Cross-Site Scripting (XSS) Vulnerability in Image URLs