CVE-2021-47901 dirsearch 0.4.1 - CSV Injection

Medium 5.1 Published Updated

Attackers can inject malicious Excel formulas into CSV reports generated by Dirsearch, potentially leading to code execution when the report is opened.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-47901?

CVE-2021-47901 is a medium-severity vulnerability in maurosoria dirsearch, published on 27 Jan 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Dirsearch 0.4.1 contains a CSV injection vulnerability when using the --csv-report flag that allows attackers to inject formulas through redirected endpoints. Attackers can craft malicious server redirects with comma-separated paths containing Excel formulas to manipulate the generated CSV report.

Weakness: CWE-1236

Which versions are affected by CVE-2021-47901?

How do I fix CVE-2021-47901?

No fix has been published for CVE-2021-47901 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-47901 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47901 exists.

Sources

Also known as GHSA-3pqc-wf77-h389.

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