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CVE-2022-0939

30
FAUCET Score

CVE-2022-0939 describes a critical Server-Side Request Forgery (SSRF) vulnerability affecting janeczku/calibre-web versions prior to 0.6.18. This flaw, rated 9.9 CVSS, allows an unauthenticated attacker to remotely execute arbitrary requests, potentially leading to data compromise, integrity issues, and denial of service. While no public exploits or active exploitation have been observed, and community discussion is minimal, the high severity warrants immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.6.18CPE matchmatch criteria
cpe:2.3:a:janeczku:calibre-web:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.0CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.04%
Probability of exploitation in next 30 days
EPSS Percentile
60.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0104 is in the 46th percentile among its peer group of 36,835 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 (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / janeczku/calibre-web/commit/4545f4a20d9ff90b99bbd4e3e34b6de4441d6367
PatchThird Party Advisory
huntr.dev / bounties/768fd7e2-a767-4d8d-a517-e9dda849c6e4
ExploitIssue TrackingPatchThird Party Advisory