CVE-2023-39062 Spipu HTML2PDF vulnerable to cross-site scripting
A remote attacker can execute arbitrary code via a crafted script in the HTML2PDF library's forms.php file.
- 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
- Available
What is CVE-2023-39062?
CVE-2023-39062 is a medium-severity cross-site scripting vulnerability in n/a, published on 28 Aug 2023. 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
Cross Site Scripting vulnerability in Spipu HTML2PDF before v.5.2.8 allows a remote attacker to execute arbitrary code via a crafted script to the forms.php.
Weakness: CWE-79
Which versions are affected by CVE-2023-39062?
2 open source packages ship an affected version, including spipu/html2pdf. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
spipu/html2pdf Packagist | All versions | 5.2.8 |
spipu/html2pdf Packagist | All versions | 5.2.8 |
Products include Html2pdf Project Html2pdf.
How do I fix CVE-2023-39062?
Upgrade spipu/html2pdf to 5.2.8 or later.
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-2023-39062 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-39062 exists.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as GHSA-99fg-2h75-m92h.