CVE-2022-23644Network attack vector

Authenticated internal network access via unrestricted cover fetch

Published Feb 16, 2022 · Updated Apr 23, 2025

Server-side request forgery in BookWyrm before 0.3.0 allows remote authenticated users to make server-side requests via cover URLs. The cover-loading path accepts a member-supplied URL and retrieves it from the BookWyrm host without restricting the destination. Any logged-in member can direct the instance toward internal or otherwise server-reachable HTTP endpoints; public sources do not document whether response bodies are returned.

CVSS severity8.8
High
EPSS probability0.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in BookWyrm before 0.3.0 allows remote authenticated users to make server-side requests via cover URLs. The cover-loading path accepts a member-supplied URL and retrieves it from the BookWyrm host without restricting the destination. Any logged-in member can direct the instance toward internal or otherwise server-reachable HTTP endpoints; public sources do not document whether response bodies are returned.

The record

CVE
CVE-2022-23644
Published
Feb 16, 2022
Updated
Apr 23, 2025
Vendor
BookWyrm
Product
BookWyrm
Classifications
CWE-918, T1090
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 16, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record 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=< 0.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

BookWyrm · BookWyrmversion=< 0.3.0

Published CVSS scores

6.5NISTAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NISTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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)
T1090Proxy

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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