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GHSA-hcjv-982c-5f29 alextselegidis/easyappoin…

Fix: alextselegidis/easyappointments@74633b6

GHSA-hcjv-982c-5f29 is a CWE-284 vulnerability in alextselegidis/easyappointments. No vendor fix is recorded yet; mitigation options are listed below.

Easy!Appointments Denial of Service (DoS)

Also known asCVE-2025-29448
Published
May 7, 2025
Updated
May 8, 2025
Affected
1 pkg
Patched
See advisory
Exploits
None indexed
Exploitation data as of Sep 19, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for GHSA-hcjv-982c-5f29.

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs45th percentile — riskier than 45% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

1 pkg affected
🐘alextselegidis/easyappointments

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Booking logic flaw in Easy!Appointments v1.5.1 allows unauthenticated attackers to create appointments with excessively long durations, causing a denial of service by blocking all future booking availability.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🐘Packagistalextselegidis/easyappointmentsall versionsNo fix

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for alextselegidis/easyappointments, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    No patched version of alextselegidis/easyappointments has shipped for GHSA-hcjv-982c-5f29 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-hcjv-982c-5f29 can be triaged on real exposure rather than presence alone.

Tailored to GHSA-hcjv-982c-5f29. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Booking logic flaw in Easy!Appointments v1.5.1 allows unauthenticated attackers to create appointments with excessively long durations, causing a denial of service by blocking all future booking availability.
O3 Security · Impact-Aware SCA

Is GHSA-hcjv-982c-5f29 in your dependencies?

O3 Security finds GHSA-hcjv-982c-5f29 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-hcjv-982c-5f29: DoS | O3 Security