CVE-2019-19589 File upload in n/a
The plugin fails to block polyglot PDF files that are valid JAR archives, potentially allowing code execution if users download and execute them.
- 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-2019-19589?
CVE-2019-19589 is a critical vulnerability in n/a, published on 5 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Lever PDF Embedder plugin 4.4 for WordPress does not block the distribution of polyglot PDF documents that are valid JAR archives. Note: It has been argued that "The vulnerability reported in PDF Embedder Plugin is not valid as the plugin itself doesn't control or manage the file upload process. It only serves the uploaded PDF files and the responsibility of uploading PDF file remains with the Site owner of Wordpress installation, the upload of PDF file is managed by Wordpress core and not by PDF Embedder Plugin. Control & block of polyglot file is required to be taken care at the time of upload, not on showing the file. Moreover, the reference mentions retrieving the files from the browser cache and manually renaming it to jar for executing the file. That refers to a two step non-connected steps which has nothing to do with PDF Embedder.
Weakness: CWE-436
Which versions are affected by CVE-2019-19589?
It affects 1 product.
Products include Wp-Pdf Pdf Embedder.
How do I fix CVE-2019-19589?
No fix has been published for CVE-2019-19589 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-19589 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-19589 exists.
Sources
Also known as GHSA-7m2h-6596-w2g6.