Skip to main content
Public proof of conceptFix available

CVE-2023-46303

A public proof of concept exists; no exploitation attested.

  • Published2023-10-22
  • Fixed in6.19.0
  • WeaknessCWE-918

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2023-10-2218:15CVE publishedNVD

Versions per branch

NVD
Calibre-ebook calibre
BranchAffectedFixed in
6.19< 6.19.06.19.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • calibreUbuntu:26.10all versions · no fixed version listed
  • calibreUbuntu:26.04:LTSall versions · no fixed version listed
  • calibreUbuntu:25.10all versions · no fixed version listed
  • calibreUbuntu:24.04:LTSall versions · no fixed version listed
  • calibreUbuntu:22.04:LTSall versions · no fixed version listed
  • calibreUbuntu:20.04:LTSall versions · no fixed version listed
  • calibreUbuntu:18.04:LTSall versions · no fixed version listed
  • calibreUbuntu:16.04:LTSall versions · no fixed version listed

5 more package ranges on OSV.dev

Vendor advisories

Full record on NVD

Fix

  1. Update Calibre-ebook calibre to 6.19.0

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
2023-10-22
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-3j9j-5462-cpx8

Frequently asked questions

What is CVE-2023-46303?

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.

Is CVE-2023-46303 actively exploited?

A proof-of-concept exploit exists for CVE-2023-46303, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-46303?

CVE-2023-46303 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Running calibre? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record