CVE-2024-51996: symfony Improper Authentication
Vulnerability summary
CVE-2024-51996 is a high (CVSS 7.5) Improper Authentication vulnerability in symfony. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 48.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 13-11-2024PublishedVulnerability first disclosed.
- 13-11-2024Last modifiedVulnerability information updated.
Description
Symphony process is a module for the Symphony PHP framework which executes commands in sub-processes. When consuming a persisted remember-me cookie, Symfony does not check if the username persisted in the database matches the username attached with the cookie, leading to authentication bypass. This vulnerability is fixed in 5.4.47, 6.4.15, and 7.1.8.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.62%
Chance of exploitation in the next 30 days
Percentile
49%
Versus all other CVEs
30-day change
0.00 pp
From 0.62% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-287Improper AuthenticationWhen an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
- CWE-289Authentication Bypass by Alternate NameThe product performs authentication based on the name of a resource being accessed, or the name of the actor performing the access, but it does not properly check all possible names for that resource or actor.
Affected systems
Debian1 product
- symfony< 6.4.15+dfsg-1 | < 5.4.23+dfsg-1+deb12u4
Symfony1 product
- symfony≥ 5.3.0, < 5.4.47 | ≥ 6.0.0-BETA1, < 6.4.15 | ≥ 7.0.0-BETA1, < 7.1.8
Ubuntu1 product
- symfonyAll versions (No fix recorded) | < 6.4.5+dfsg-3ubuntu3+esm1
3 vendors · 3 products
