5.3

CVE-2022-40482: laravel framework Observable Discrepancy

CVSS: 5.3v3.1MediumAnalyzed
Published 25-04-2023Last modified 03-02-2025
Open JSON

Vulnerability summary

CVE-2022-40482 is a medium (CVSS 5.3) Observable Discrepancy vulnerability in laravel framework. EPSS estimates a 0.89% chance of exploitation in the next 30 days, higher than 58.6% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.89%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2github, reference

Timeline

  1. 25-04-2023
    PublishedVulnerability first disclosed.
  2. 03-02-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.89%

Chance of exploitation in the next 30 days

Percentile

59%

Versus all other CVEs

30-day change

0.00 pp

From 0.89% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.89%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • githubUnverified

    Laravel User Enumeration Demo

    Maturity: poc

  • referenceUnverified

    Exploit Reference (ephort.dk)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Laravel1 product
  • framework≥ 8.0.0, < 8.83.24 | ≥ 9.0.0, < 9.32.0

1 vendor · 1 product

References

4 links