HIGH
An issue was discovered in the Security component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11
Published Jun 13, 2018
8.1
HIGHCVSS 3.0
EPSS 2.00%
Description
An issue was discovered in the Security component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. A session fixation vulnerability within the "Guard" login feature may allow an attacker to impersonate a victim towards the web application if the session id value was previously known to the attacker.
Affected products
No data.
Configuration 1
OR
- ≥ 2.7.0 · < 2.7.48
- ≥ 2.8.0 · < 2.8.41
- ≥ 3.3.0 · < 3.3.17
- ≥ 3.4.0 · < 3.4.11
- ≥ 4.0.0 · < 4.0.11
Configuration 2
OR
- 8.0
- 9.0
Configuration 3
- 28
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
8.1 HIGH NVD
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
6.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.00% 0.02005
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02005
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.00% (0.02005) | 80.08th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.01% (0.02014) | 78.28th | v5 (v2026.06.15) |
| Dec 28, 2025 | 0.90% (0.00904) | 75.13th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.93% (0.01931) | 72.42th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.92% (0.00923) | 74.40th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.51% (0.00514) | 77.45th | v3 (v2023.03.01) |
| Mar 6, 2024 | 0.51% (0.00514) | 76.14th | v3 (v2023.03.01) |
| Jan 7, 2024 | 0.51% (0.00514) | 74.13th | v3 (v2023.03.01) |
| Dec 14, 2023 | 0.56% (0.00563) | 75.20th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.80% (0.00796) | 79.56th | v3 (v2023.03.01) |
| Nov 4, 2023 | 0.92% (0.00925) | 81.24th | v3 (v2023.03.01) |
| Sep 3, 2023 | 1.31% (0.01307) | 84.24th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.60% (0.01601) | 85.37th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.54% (0.01543) | 33.48th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.54% (0.01543) | 0.00th | v1 |
Weaknesses (1)
References (18)
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2018-11385.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2018-11385.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2018-11385.yaml
- https://github.com/advisories/GHSA-g4rg-rw65-8hfg Advisory
- https://github.com/symfony/symfony/commit/194caff28b56707ea98e746c6582c06acbb9bc3f
- https://github.com/symfony/symfony/commit/fa5bf4b17d45ee32f41bd1a9abc3fb6c134ec89b
- https://github.com/symfony/symfony/commit/fad1e1f2ea336e85c889feece9d0e23fbfcf777d
- https://lists.debian.org/debian-lts-announce/2019/03/msg00009.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJV/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBW/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WH/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJV/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBW/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WH/
- https://nvd.nist.gov/vuln/detail/CVE-2018-11385
- https://symfony.com/blog/cve-2018-11385-session-fixation-issue-for-guard-authentication x_refsource_CONFIRMVendor Advisory
- https://symfony.com/cve-2018-11385
- https://www.debian.org/security/2018/dsa-4262 vendor-advisoryx_refsource_DEBIANThird Party Advisory
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jun 13, 2018
Updated Aug 5, 2024
Reserved May 22, 2018
Link CVE-2018-11385
CISA Vulnrichment
GHSA-G4RG-RW65-8HFG Updated n/a