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Vulnerability details: VCID-ap6u-129r-9kcg
Vulnerability ID VCID-ap6u-129r-9kcg
Aliases CVE-2015-8124
GHSA-j5jh-hpr4-h332
Summary Symfony Session Fixation Vulnerability A session fixation vulnerability within the "Remember Me" login feature allows an attacker to impersonate the victim towards the web application if the session id value was previously known to the attacker. This issue has been fixed in Symfony 2.3.35, 2.6.12, and 2.7.7. Note that no fixes are provided for Symfony 2.4 and 2.5 as they are not maintained anymore. Symfony 2.8 and 3.0 haven't been released yet and the fix will be included in their first stable releases.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-384 Session Fixation
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 3.1 http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173271.html
generic_textual LOW http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173271.html
cvssv3.1 3.1 http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173300.html
generic_textual LOW http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173300.html
epss 0.00247 https://api.first.org/data/v1/epss?cve=CVE-2015-8124
cvssv3.1 3.1 http://seclists.org/fulldisclosure/2015/Dec/89
generic_textual LOW http://seclists.org/fulldisclosure/2015/Dec/89
cvssv3.1 3.1 https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2015-8124.yaml
generic_textual LOW https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2015-8124.yaml
cvssv3.1 3.1 https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2015-8124.yaml
generic_textual LOW https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2015-8124.yaml
cvssv3.1 3.1 https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2015-8124.yaml
generic_textual LOW https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2015-8124.yaml
cvssv3.1 3.1 https://github.com/symfony/symfony/pull/16631
generic_textual LOW https://github.com/symfony/symfony/pull/16631
cvssv3.1 3.1 https://nvd.nist.gov/vuln/detail/CVE-2015-8124
generic_textual LOW https://nvd.nist.gov/vuln/detail/CVE-2015-8124
cvssv3.1 3.1 https://symfony.com/blog/cve-2015-8124-session-fixation-in-the-remember-me-login-feature
generic_textual LOW https://symfony.com/blog/cve-2015-8124-session-fixation-in-the-remember-me-login-feature
cvssv3.1 3.1 https://symfony.com/cve-2015-8124
generic_textual LOW https://symfony.com/cve-2015-8124
cvssv3.1 3.1 https://web.archive.org/web/20201209020014/http://www.securityfocus.com/archive/1/537183/100/0/threaded
generic_textual LOW https://web.archive.org/web/20201209020014/http://www.securityfocus.com/archive/1/537183/100/0/threaded
cvssv3.1 3.1 https://web.archive.org/web/20210125123853/http://www.securityfocus.com/bid/77694
generic_textual LOW https://web.archive.org/web/20210125123853/http://www.securityfocus.com/bid/77694
cvssv3.1 3.1 http://www.debian.org/security/2015/dsa-3402
generic_textual LOW http://www.debian.org/security/2015/dsa-3402
Reference id Reference type URL
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173271.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173300.html
https://api.first.org/data/v1/epss?cve=CVE-2015-8124
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8124
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8125
http://seclists.org/fulldisclosure/2015/Dec/89
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2015-8124.yaml
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2015-8124.yaml
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2015-8124.yaml
https://github.com/symfony/symfony/pull/16631
https://nvd.nist.gov/vuln/detail/CVE-2015-8124
https://symfony.com/blog/cve-2015-8124-session-fixation-in-the-remember-me-login-feature
https://symfony.com/cve-2015-8124
https://web.archive.org/web/20201209020014/http://www.securityfocus.com/archive/1/537183/100/0/threaded
https://web.archive.org/web/20210125123853/http://www.securityfocus.com/bid/77694
http://www.debian.org/security/2015/dsa-3402
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Found at http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173271.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Found at http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173300.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Found at http://seclists.org/fulldisclosure/2015/Dec/89
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

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none

required

unchanged

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high

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none

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Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2015-8124.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

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none

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low

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none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2015-8124.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

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low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2015-8124.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

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low

none

high

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none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Found at https://github.com/symfony/symfony/pull/16631
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2015-8124
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Found at https://symfony.com/blog/cve-2015-8124-session-fixation-in-the-remember-me-login-feature
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Found at https://symfony.com/cve-2015-8124
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Found at https://web.archive.org/web/20201209020014/http://www.securityfocus.com/archive/1/537183/100/0/threaded
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Found at https://web.archive.org/web/20210125123853/http://www.securityfocus.com/bid/77694
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Found at http://www.debian.org/security/2015/dsa-3402
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.4791
EPSS Score 0.00247
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:26:30.394201+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-j5jh-hpr4-h332/GHSA-j5jh-hpr4-h332.json 36.1.3