CVE-2022-24895Network attack vector

CSRF protection bypass via retained pre-login tokens

Published Feb 3, 2023 · Updated Mar 10, 2025

CSRF token fixation in affected Symfony SecurityBundle releases allows remote attackers to bypass CSRF protection through a same-site attack. SessionAuthenticationStrategy migrates the session ID on successful login but leaves pre-login CSRF tokens in session-backed token storage. Exploitation requires remote attackers to control a same-site origin and induce a victim to log in; the retained token then bypasses validation in that authenticated session.

CVSS severity6.3
Medium
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF token fixation in affected Symfony SecurityBundle releases allows remote attackers to bypass CSRF protection through a same-site attack. SessionAuthenticationStrategy migrates the session ID on successful login but leaves pre-login CSRF tokens in session-backed token storage. Exploitation requires remote attackers to control a same-site origin and induce a victim to log in; the retained token then bypasses validation in that authenticated session.

The record

CVE
CVE-2022-24895
Published
Feb 3, 2023
Updated
Mar 10, 2025
Vendor
Symfony
Product
Symfony
Classifications
CWE-384, CWE-613, CAPEC-61
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 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=>= 2.0.0, < 4.4.50
  2. Affected versionversion=>= 5.0.0, < 5.4.20
  3. Affected versionversion=>= 6.0.0, < 6.0.20
  4. Affected versionversion=>= 6.1.0, < 6.1.12
  5. Affected versionversion=>= 6.2.0, < 6.2.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Symfony · Symfonyversion=>= 2.0.0, < 4.4.50; version=>= 5.0.0, < 5.4.20; version=>= 6.0.0, < 6.0.20; version=>= 6.1.0, < 6.1.12; version=>= 6.2.0, < 6.2.6

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.3GitHub, Inc. CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

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-384Session Fixation
CWE-613Insufficient Session Expiration
CAPEC-61Session Fixation

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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