Security Digest · Vulnerability record

CVE-2024-57602: Easy!Appointments Improper Restriction of Excessive Authentication Attempts

An issue in Alex Tselegidis EasyAppointments v.1.5.0 allows a remote attacker to escalate privileges via the index.php file.

CVSS 9.8 Critical EPSS 0.8% · p57

Should you act?

Critical and remotely reachable

No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

  • Not in CISA KEV, but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
  • EPSS 0.8%, percentile 57: FIRST’s model estimates a 0.8% chance of exploitation activity in the next 30 days, higher than 57% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
  • Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
  • Only applies if your dependency tree includes alextselegidis/easyappointments (Composer (PHP)) <= 1.5.0, no fixed version listed. Check your lockfile, including transitive dependencies.

What it is

An issue in Alex Tselegidis EasyAppointments v.1.5.0 allows a remote attacker to escalate privileges via the index.php file.

From the GitHub advisory

An issue in Alex Tselegidis EasyAppointments v.1.5.0 allows a remote attacker to escalate privileges via the index.php file.

Weakness type: CWE-269, CWE-307.

Product: alextselegidis/easyappointments (Composer (PHP)) · Assigned by: mitre · Published: 2025-02-12

Affected and fixed versions

EcosystemPackageVulnerableFirst fixed
Composer (PHP)alextselegidis/easyappointments<= 1.5.0none listed
VendorProductAffected versions (per CVE record)
n/an/asee vendor advisory

Severity scores

Scored byCVSSScoreVector
CISA-ADP3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub3.19.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack vector: network (remotely reachable)
  • Attack complexity: low
  • Privileges required: none (no login)
  • User interaction: none
  • Scope: unchanged

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

  • CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
  • CISA SSVC assessment: exploitation poc, automatable no, technical impact partial.
  • FIRST EPSS (model of 2026-10-21): 0.83% probability of exploitation activity in the next 30 days; percentile 57.

Timeline

  • — CVE record published by mitre
  • — GitHub-reviewed advisory GHSA-8fc2-fhh6-f6m5 published (critical)
  • — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vulnerability records

  1. GitHub Advisory GHSA-8fc2-fhh6-f6m5 github.com
  2. CVE.org record CVE-2024-57602 cve.org
  3. NVD entry CVE-2024-57602 nvd.nist.gov

Other references from the CVE record and advisory

  1. hkohi.ca hkohi.ca

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