CVE-2021-27839

low-risk
Published 2021-03-03

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.

Do I need to act?

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0.22% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.4/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Online Invoicing System

Affected Vendors

Bigprof

References (4)

Release Notes https://github.com/bigprof-software/online-invoicing-system/releases/tag/4.4
Third Party Advisory https://www.jinsonvarghese.com/csv-injection-in-online-invoicing-system/
Release Notes https://github.com/bigprof-software/online-invoicing-system/releases/tag/4.4
Third Party Advisory https://www.jinsonvarghese.com/csv-injection-in-online-invoicing-system/
21
/ 100
low-risk
Severity 15/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal