← Back
CVE-2026-52840
low
CVSS 2.7
SSRF (Server-Side Request Forgery) in alextselegidis/easyappointments (CVE-2026-52840)
Summary
SSRF in alextselegidis/easyappointments (CVE-2026-52840). Risk of unauthorized operations or information disclosure. Exploitable via ``caldav_url``.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-52840** has been found in alextselegidis/easyappointments.
Attackers can target a specific entry point like ``caldav_url`` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 2.7/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "alextselegidis/easyappointments CVE-2026-52840" on the vendor's site.
CVE-2026-52840 (alextselegidis/easyappointments) — CWE-918 / CVSS v3 2.7
Attack vector: remote (network-reachable) / no user interaction
Attack surface: `caldav_url` / `REPORT` / `message` / `provider_id`
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**SSRF** (CWE-918) exists in alextselegidis/easyappointments. Attackers reach the vulnerable code path via ``caldav_url`` without authentication.
📍 Affected scope
alextselegidis/easyappointments — . Attack surface: `caldav_url` / `REPORT` / `message` / `provider_id`.
🔥 Severity
Severity: Low (CVSS 2.7/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'alextselegidis/easyappointments' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'alextselegidis/easyappointments' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `alextselegidis/easyappointments` を grep し、稼働しているサービス・バージョンを把握する。
-
7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
composer
alextselegidis/easyappointments
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- web https://github.com/alextselegidis/easyappointments/commit/6eb9336a91cfb276379506625e81f5bd9ed3a536
- web https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-pm5p-7w5h-jm5q
- web https://nvd.nist.gov/vuln/detail/CVE-2026-52840
- web https://github.com/alextselegidis/easyappointments/commit/2da2baed18ec32ad7916e507815709c8f010d510
- web https://github.com/alextselegidis/easyappointments/commit/4abb10545d83ac1a57d03f6502376ee67696ea7c
- web https://github.com/alextselegidis/easyappointments/commit/6b34b78c47790dfd1dec27cf62926db51be276e9
- web https://github.com/alextselegidis/easyappointments/releases/tag/1.6.0
- web https://github.com/advisories/GHSA-pm5p-7w5h-jm5q