HOMEVULNERABILITIESCVE-2023-46733
MEDIUM

CVE-2023-46733

CWE-384Published: November 10, 2023· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Starting in versions 5.4.21 and 6.2.7 and prior to versions 5.4.31 and 6.3.8, `SessionStrategyListener` does not migrate the session after every successful login. It does so only in case the logged in user changes by means of checking the user identifier. In some use cases, the user identifier doesn't change between the verification phase and the successful login, while the token itself changes from one type (partially-authenticated) to another (fully-authenticated). When this happens, the session id should be regenerated to prevent possible session fixations, which is not the case at the moment. As of versions 5.4.31 and 6.3.8, Symfony now checks the type of the token in addition to the user identifier before deciding whether the session id should be regenerated.

NVD Source

Technical Analysis

CVE-2023-46733 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

sensiolabs1 product(s)
symfony
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/symfony/symfony/commit/7467bd7e3f888b333102bc664b5e02ef1e7f88b9
PATCHhttps://github.com/symfony/symfony/commit/dc356499d5ceb86f7cf2b4c7f032eca97061ed74
PATCHhttps://github.com/symfony/symfony/security/advisories/GHSA-m2wj-r6g3-fxfx
PATCHhttps://github.com/symfony/symfony/commit/7467bd7e3f888b333102bc664b5e02ef1e7f88b9
PATCHhttps://github.com/symfony/symfony/commit/dc356499d5ceb86f7cf2b4c7f032eca97061ed74
PATCHhttps://github.com/symfony/symfony/security/advisories/GHSA-m2wj-r6g3-fxfx

All References (6)

→
https://github.com/symfony/symfony/commit/7467bd7e3f888b333102bc664b5e02ef1e7f88b9Patch
→
https://github.com/symfony/symfony/commit/dc356499d5ceb86f7cf2b4c7f032eca97061ed74Patch
→
https://github.com/symfony/symfony/security/advisories/GHSA-m2wj-r6g3-fxfxPatch · Vendor Advisory
→
https://github.com/symfony/symfony/commit/7467bd7e3f888b333102bc664b5e02ef1e7f88b9Patch
→
https://github.com/symfony/symfony/commit/dc356499d5ceb86f7cf2b4c7f032eca97061ed74Patch
→
https://github.com/symfony/symfony/security/advisories/GHSA-m2wj-r6g3-fxfxPatch · Vendor Advisory

Quick Facts

CVE IDCVE-2023-46733
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-384
CISA KEVNo
Affected1 vendor(s)
PublishedNov 10, 2023

Related CVEs (CWE-384)

CVE-2024-11317
10.0
CVE-2021-20151
10.0
CVE-2025-45949
9.8
CVE-2024-8643
9.8
CVE-2026-24352
9.8
CVE-2026-25101
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-46733 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2023-46733·NVD