Vulnerability CVE-2021-27839
Published: 2021-03-03

Description:
A CSV injection vulnerability found in Online Invoicing System (OIS) 4.3 and below can be exploited by users to perform malicious actions such as redirecting admins to unknown or harmful websites, or disclosing other clients' details that the user did not have access to.

Type:

CWE-1236

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
Bigprof -> Online invoicing system 

 References:
https://github.com/bigprof-software/online-invoicing-system/releases/tag/4.4
https://www.jinsonvarghese.com/csv-injection-in-online-invoicing-system/
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