CVE-2021-41917

5.4 MEDIUM

webTareas version 2.4 and earlier allows an authenticated user to store arbitrary web script or HTML by creating or editing a client name...

Published: 2021-10-08 · 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
webtareas_project	webtareas

Description

webTareas version 2.4 and earlier allows an authenticated user to store arbitrary web script or HTML by creating or editing a client name in the clients section, due to incorrect sanitization of user-supplied data and achieve a Stored Cross-Site Scripting attack against the platform users and administrators. The affected endpoint is /clients/editclient.php, on the HTTP POST cn parameter.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-41917
[Exploit reference]https://n4nj0.github.io/advisories/webtareas-multiple-vulnerabilities-i/
[Exploit reference]https://n4nj0.github.io/advisories/webtareas-multiple-vulnerabilities-i/

Related CVEs

Same vendor

CVE-2021-41920 — webTareas version 2.4 and earlier allows an unauthenticated user to perform Time and Boolean-based blind SQL Injection on the endpoint /i... (7.5 HIGH)
CVE-2021-41919 — webTareas version 2.4 and earlier allows an authenticated user to arbitrarily upload potentially dangerous files without restrictions (8.8 HIGH)
CVE-2021-41918 — webTareas version 2.4 and earlier allows an authenticated user to inject arbitrary web script or HTML due to incorrect sanitization of us... (5.4 MEDIUM)
CVE-2021-41916 — A Cross-Site Request Forgery (CSRF) vulnerability in webTareas version 2.4 and earlier allows a remote attacker to create a new administr... (8.8 HIGH)

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)