CVE-2023-1147 Cross-site Scripting (XSS) - Stored in flatpressblog/flatpress

Medium 6.5 Published Updated

Attackers can inject malicious scripts into FlatPress blogs, potentially stealing user sessions or executing code in victim browsers.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-1147?

CVE-2023-1147 is a medium-severity cross-site scripting vulnerability in flatpressblog/flatpress, published on 2 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Cross-site Scripting (XSS) - Stored in GitHub repository flatpressblog/flatpress prior to 1.3.

Weakness: CWE-79

Which versions are affected by CVE-2023-1147?

It affects 1 product.

Products include Flatpress Flatpress.

How do I fix CVE-2023-1147?

No fix has been published for CVE-2023-1147 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-1147 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-1147 exists.

Sources

Also known as GHSA-g2v3-w77f-w9wf.

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