CVE-2021-34637 Post Index <= 0.7.5 Cross-Site Request Forgery to Stored Cross-Site Scripting

High 8.8 Published Updated

Attackers can exploit CSRF in the Post Index plugin to inject arbitrary scripts, leading to stored XSS and potential site compromise.

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-2021-34637?

CVE-2021-34637 is a high-severity vulnerability in iTux Post Index, published on 2 Aug 2021. 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

The Post Index WordPress plugin is vulnerable to Cross-Site Request Forgery via the OptionsPage function found in the ~/php/settings.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.7.5.

Weakness: CWE-352

Which versions are affected by CVE-2021-34637?

It affects 1 product.

Products include Post Index Project Post Index.

How do I fix CVE-2021-34637?

No fix has been published for CVE-2021-34637 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-34637 being exploited?

There is no known exploitation of CVE-2021-34637 in the wild and no public exploit code.

Sources

Also known as GHSA-cv5w-2vh5-xf8p.

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