CVE-2021-40191

5.4 MEDIUM

Dzzoffice Version 2.02.1 is affected by cross-site scripting (XSS) due to a lack of sanitization of input data at all upload functions in...

Published: 2021-10-11 · Last updated: 2026-06-17

Severity and scoring

CVSS: 5.4 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE: CWE-79

Affected products

Vendor	Product
dzzoffice	dzzoffice

Description

Dzzoffice Version 2.02.1 is affected by cross-site scripting (XSS) due to a lack of sanitization of input data at all upload functions in webroot/dzz/attach/Uploader.class.php and return a wrong response in content-type of output data in webroot/dzz/attach/controller.php.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-40191
[Exploit reference]https://github.com/zyx0814/dzzoffice/issues/196
[Exploit reference]https://github.com/zyx0814/dzzoffice/issues/196

Related CVEs

Same vendor

CVE-2021-40292 — A Stored Cross Site Sripting (XSS) vulnerability exists in DzzOffice 2.02.1 via the settingnew parameter (5.4 MEDIUM)
CVE-2021-3318 — attach/ajax.php in DzzOffice through 2.02.1 allows XSS via the editorid parameter (6.1 MEDIUM)

Same CWE

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CVE-2026-54198 — Unauthenticated Cross Site Scripting (XSS) in Media LIbrary Assistant <= 3.35 versions (7.1 HIGH)
CVE-2026-54191 — Unauthenticated Cross Site Scripting (XSS) in Pods <= 3.3.8 versions (7.1 HIGH)
CVE-2026-39437 — Unauthenticated Cross Site Scripting (XSS) in Min Max Step Quantity Limits Manager for WooCommerce <= 5.2.2 versions (7.1 HIGH)