# Easy!Appointments has server-side request forgery in CalDAV connection test that exposes the deployment's internal network Advisory record · `GHSA-pm5p-7w5h-jm5q` - **Identifiers:** `GHSA-pm5p-7w5h-jm5q` · `CVE-2026-52840` · `PKSA-qvhv-yhm7-8xkk` - **State:** Confirmed - **Severity:** CVSS 2.7 Low - **Critical:** No - **Weakness (CWE):** [CWE-918](https://cwe.mitre.org/data/definitions/918.html) - **Tags:** [Server-side request forgery (SSRF)](https://agentprime.io/advisories/tag/ssrf.md) - **Published:** 29 Jul 2026 - **Updated:** 10 Nov 2026 - **Reviewed by a person:** No Published by the GitHub Advisory Database at 29 Jul 2026, 16:24 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. ## Affected packages - `alextselegidis/easyappointments` (Packagist): affected `<1.6.1`; fixed in `1.6.1` ## Machine-written summary Summary written by Claude Haiku from the source advisory. Not reviewed by a person. > Easy!Appointments versions up to and including 1.5.2 are affected by a server-side request forgery in the CalDAV connection test. A logged-in backend user, such as an admin, provider, or secretary, can make the server send requests to loopback, private network, and link-local hosts, and can read the upstream status code and about 120 bytes of the response or the connection error details. No fix is listed. Written 3 Nov 2026. ## Not analysed yet We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check. ## Severity and exploitation - 2.7 Low, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N`, from CNA (GitHub_M) - **CISA KEV:** Not listed. - **EPSS:** 0.0023, the 14th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline - 29 Jul 2026, 16:24 UTC: [Confirmed by GitHub Advisory Database](https://github.com/advisories/GHSA-pm5p-7w5h-jm5q) - 31 Oct 2026, 14:24 UTC: First seen by agentprime - 31 Oct 2026, 14:24 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-pm5p-7w5h-jm5q) ## Sources - [GitHub Advisory Database: GHSA-pm5p-7w5h-jm5q](https://github.com/advisories/GHSA-pm5p-7w5h-jm5q) - [OSV: GHSA-pm5p-7w5h-jm5q](https://osv.dev/vulnerability/GHSA-pm5p-7w5h-jm5q) - - - - - - - - Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code. ## Check whether this affects you A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet. - With the agentprime MCP server (), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: - In a browser: reads your lockfile in the browser, never uploading it. - Whether it touches your code, with file and line: the Claude Code plugin, - As JSON: , or `POST https://api.agentprime.io/v1/match` with your packages () --- The web page: . Everything for agents: .