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CVE-2022-24895

Symfony vulnerable to Session Fixation of CSRF tokens

HIGH
8.8
CVSS Score
Published: February 3, 2023 at 09:45 PM UTC
Updated: June 17, 2026 at 04:32 AM UTC
2 products affected across 2 vendorsSymfonySymfony

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Severity
HIGH8.8
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. When authenticating users Symfony by default regenerates the session ID upon login, but preserves the rest of session attributes. Because this does not clear CSRF tokens upon login, this might enables same-site attackers to bypass the CSRF protection mechanism by performing an attack similar to a session-fixation. This issue has been fixed in the 4.4 branch.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Symfony· Sensiolabsdrupal
95%
2.0.0 ≤ v < 4.4.505.0.0 ≤ v < 5.4.206.0.0 ≤ v < 6.0.206.1.0 ≤ v < 6.1.126.2.0 ≤ v < 6.2.6
Affected range stops below 4.4.50, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.0.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.2.6, so it looks safe — our inference, not a vendor statement
Symfony· Symfonycomposer
60%
v < 4.4.50v < 5.4.20v < 6.0.20v < 6.1.12v < 6.2.6
Affected range stops below 4.4.50, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.0.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.2.6, so it looks safe — our inference, not a vendor statement

References (5)

x_refsource_MISCIssue Tracking
Source: [email protected]
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-bundle/CVE-2022-24895.yaml
x_refsource_MISCPatch
Source: [email protected]
https://github.com/symfony/security-bundle/commit/076fd2088ada33d760758d98ff07ddedbf567946
x_refsource_MISCPatch
Source: [email protected]
https://github.com/symfony/symfony/commit/5909d74ecee359ea4982fcf4331aaf2e489a1fd4
x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://github.com/symfony/symfony/security/advisories/GHSA-3gv2-29qc-v67m
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2023/07/msg00014.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-384CWE-613

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