CVE-2025-63693: dzzoffice Code Injection — Exploit

Description

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.

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CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-94 CWE-94

Affected Products

Vendor	Product	Versions
dzzoffice	dzzoffice	< 2.3.7

References

Exploits

https://github.com/zyx0814/dzzoffice/issues/363

Other References

https://github.com/Yohane-Mashiro/dzzoffice_xss

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2025-63693? +

CVE-2025-63693 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-63693? +

CVE-2025-63693 affects products from dzzoffice, specifically: dzzoffice. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-63693? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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