MEDIUM
CVE-2022-40482
CWE-203Published: April 25, 2023· Updated: Jun 17, 2026
5.3
CVSS v3.1
Official Description
The authentication method in Laravel 8.x through 9.x before 9.32.0 was discovered to be vulnerable to user enumeration via timeless timing attacks with HTTP/2 multiplexing. This is caused by the early return inside the hasValidCredentials method in the Illuminate\Auth\SessionGuard class when a user is found to not exist.
Technical Analysis
CVE-2022-40482 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Vendors & Products
Laravel1 product(s)
framework
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
All References (8)
→
https://ephort.dk/blog/laravel-timing-attack-vulnerability/Exploit · Technical Description · Third Party Advisory
→
https://github.com/ephort/laravel-user-enumeration-demoExploit · Third Party Advisory
→
https://github.com/laravel/framework/pull/44069Patch · Vendor Advisory
→
https://ephort.dk/blog/laravel-timing-attack-vulnerability/Exploit · Technical Description · Third Party Advisory
→
https://github.com/ephort/laravel-user-enumeration-demoExploit · Third Party Advisory
→
https://github.com/laravel/framework/pull/44069Patch · Vendor Advisory
Quick Facts
CVE IDCVE-2022-40482
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-203
CISA KEVNo
Affected1 vendor(s)
PublishedApr 25, 2023
Related CVEs (CWE-203)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-40482 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.