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CVE-2023-2106

30
FAUCET Score

CVE-2023-2106 describes a critical vulnerability (CVSS 9.8) in janeczku/calibre-web versions prior to 0.6.20, stemming from weak password requirements (CWE-521). This flaw allows unauthenticated attackers to remotely compromise the system with low complexity, leading to complete loss of confidentiality, integrity, and availability. While the vulnerability is severe and easily exploitable, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.6.20CPE matchmatch criteria
cpe:2.3:a:janeczku:calibre-web:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.3HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.74%
Probability of exploitation in next 30 days
EPSS Percentile
50.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0074 is in the 34th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: calibrewebFixed in: 0.6.20

Vendor Advisories (1)

pipGHSA-mhmp-m6g7-7c24high

Weak Password Requirements in calibreweb

Apr 15, 2023

References

github.com / janeczku/calibre-web/commit/49e4f540c9b204c7e39b3c27ceadecd83ed60e7e
Patch
huntr.dev / bounties/c3d5c647-7557-40a9-aee4-24dc14882781
ExploitThird Party Advisory