CVE-2022-0990Network attack vector

Local-network access via insufficient cover URL validation

Published Apr 4, 2022 · Updated Aug 2, 2024

SSRF in Calibre-Web before 0.6.18 allows remote authenticated users to make server-side requests to local-network services. The cps.helper.save_cover_from_url path fetches a supplied cover URL, while its address validation fails to reject other private-network hosts. An account with cover-upload permission can use the application as a network pivot and read responses accepted as cover images.

CVSS severity9.3
Critical
EPSS probability1.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Calibre-Web before 0.6.18 allows remote authenticated users to make server-side requests to local-network services. The cps.helper.save_cover_from_url path fetches a supplied cover URL, while its address validation fails to reject other private-network hosts. An account with cover-upload permission can use the application as a network pivot and read responses accepted as cover images.

The record

CVE
CVE-2022-0990
Published
Apr 4, 2022
Updated
Aug 2, 2024
Vendor
Calibre-Web
Product
Calibre-Web
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 4, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <0.6.18

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Calibre-Web · Calibre-Webversion=unspecified <0.6.18

Published CVSS scores

6.4NVDAV:N/AC:L/Au:N/C:P/I:P/A:N
9.3huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
9.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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