CVE-2022-37783Network attack vector

Password-hash disclosure via anti-CSRF token generation

Published Dec 5, 2022 · Updated Aug 3, 2024

Credential disclosure in Craft CMS 3.0.0 through 3.7.32 allows remote attackers to obtain bcrypt password hashes from anti-CSRF tokens. The token generator mixes the authenticated user's stored bcrypt hash into the CRAFT_CSRF_TOKEN cookie without encoding it and into the HTML field with reversible Yii masking. Exposure follows email-or-username authentication; SAML-authenticated users are unaffected, while token access reveals an offline-crackable credential verifier.

CVSS severity7.5
High
EPSS probability1.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential disclosure in Craft CMS 3.0.0 through 3.7.32 allows remote attackers to obtain bcrypt password hashes from anti-CSRF tokens. The token generator mixes the authenticated user's stored bcrypt hash into the CRAFT_CSRF_TOKEN cookie without encoding it and into the HTML field with reversible Yii masking. Exposure follows email-or-username authentication; SAML-authenticated users are unaffected, while token access reveals an offline-crackable credential verifier.

The record

CVE
CVE-2022-37783
Published
Dec 5, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-522, CWE-200
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 5, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
CWE-200Exposure of Sensitive Information to an Unauthorized Actor

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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