CVE-2021-41917

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.

CVSS v3.1

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

CVSS v2.0

3.5 LOWAV:N/AC:M/Au:S/C:N/I:P/A:N

EPSS

0.57% chance of exploitation in the next 30 days, 45th percentile

Published

2021-10-08

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://n4nj0.github.io/advisories/webtareas-multiple-vulnerabilities-i/

References

• CVE Record
• NVD entry

Related

• CVE-2021-41916
• CVE-2021-41918
• CVE-2021-4191
• CVE-2021-41919
• CVE-2021-4190
• CVE-2021-4192