CVE-2023-46303 Server-side request forgery in n/a
An attacker can exploit a flaw in Calibre's HTML input plugin to access resources outside the document root, potentially reading sensitive local files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-46303?
CVE-2023-46303 is a high-severity server-side request forgery vulnerability in n/a, published on 22 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
link_to_local_path in ebooks/conversion/plugins/html_input.py in calibre before 6.19.0 can, by default, add resources outside of the document root.
Weakness: CWE-918
Which versions are affected by CVE-2023-46303?
It affects 1 product.
Products include Calibre-Ebook Calibre.
How do I fix CVE-2023-46303?
Upgrade to a fixed version.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2023-46303 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-46303 exists.
Other vulnerabilities in n/a
- CVE-2011-4124 Command injection in Calibre
- CVE-2011-4125 Privilege escalation in Calibre
- CVE-2026-26064 calibre: Path Traversal Vulnerability Enables Arbitrary File Write and Remote Code Execution
- CVE-2026-26065 calibre: Path Traversal can Lead to Arbitrary File Write and Potential Code Execution
- CVE-2026-25635 calibre has a Path Traversal Leading to Arbitrary File Write and Potential Code Execution
Sources
Also known as DEBIAN-CVE-2023-46303, GHSA-3j9j-5462-cpx8, UBUNTU-CVE-2023-46303.