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)

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.005 (37.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-56683: held from 0.004 to 0.005.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000

Weakness classification (CWE)

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.