What’s Vulnerable › Vulnerabilities

CVE-2023-46303

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-10-22 · updated 2026-06-17
• Weakness: CWE-918

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.

Affected products

• kovidgoyal calibre: before 6.19.0 — fixed in 6.19.0

How to fix

Upgrade to a fixed version: kovidgoyal calibre 6.19.0. Check the vendor advisory for mitigations.

References

• https://github.com/0x1717/ssrf-via-img
• https://github.com/kovidgoyal/calibre/compare/v6.18.1...v6.19.0
• https://github.com/0x1717/ssrf-via-img
• https://github.com/kovidgoyal/calibre/compare/v6.18.1...v6.19.0
• https://lists.debian.org/debian-lts-announce/2024/09/msg00005.html

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