RCE in Dzzoffice
CVE-2025-63693
The comment editing template (dzz/comment/template/edit_form.htm) in DzzOffice 2.3.x lacks adequate security escaping for user-controllable data in multiple contexts, including HTML and JavaScript strings. This allows low-privilege attackers to construct comment content or request parameters and execute arbitrary JavaScript code when the victim opens the editing pop-up.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (6.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/Yohane-Mashiro/dzzoffice_xss (Third Party Advisory, Issue Tracking)
- github.com/zyx0814/dzzoffice/issues/363 (Exploit, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2025-63693?
- CVE-2025-63693 is a medium-severity vulnerability in Dzzoffice, classified under Code Injection. CVSS score: 5.4/10. Published 2025-11-18.
- How severe is CVE-2025-63693?
- Medium severity. CVSS v3 base score is 5.4 out of 10.