What is CVE-2025-56683?

CVE-2025-56683 is a critical-severity vulnerability in N/a, classified under Cross-site Scripting. CVSS score: 9.6/10. Published 2025-10-09.

How severe is CVE-2025-56683?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Is CVE-2025-56683 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in N/a

CVE-2025-56683

A cross-site scripting (XSS) vulnerability in the component /app/marketplace.html of Logseq v0.10.9 allows attackers to execute arbitrary code via injecting arbitrary Javascript into a crafted README.md file.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (35.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-56683?: CVE-2025-56683 is a critical-severity vulnerability in N/a, classified under Cross-site Scripting. CVSS score: 9.6/10. Published 2025-10-09.
How severe is CVE-2025-56683?: Critical severity. CVSS v3 base score is 9.6 out of 10.
Is CVE-2025-56683 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.