CVE-2018-11406: debian debian_linux Cross-Site Request Forgery (CSRF)
Vulnerability summary
CVE-2018-11406 is a high (CVSS 8.8) Cross-Site Request Forgery (CSRF) vulnerability in debian debian_linux. EPSS estimates a 0.76% chance of exploitation in the next 30 days, higher than 54.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1Timeline
- 13-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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. By default, a user's session is invalidated when the user is logged out. This behavior can be disabled through the invalidate_session option. In this case, CSRF tokens were not erased during logout which allowed for CSRF token fixation.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.76%
Chance of exploitation in the next 30 days
Percentile
55%
Versus all other CVEs
30-day change
0.00 pp
From 0.76% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- symfony< 3.4.12+dfsg-1
- debian_linuxEOL9.0
Sensiolabs1 product
- symfony≥ 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
Ubuntu1 product
- symfonyAll versions (No fix recorded)
3 vendors · 4 products
