alextselegidis/easyappointments Session Fixation vulnerability

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

5.4 · CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS

• CVE-2023-2105: 0.67% estimated exploitation activity in the next 30 days; percentile 51.95 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

alextselegidis/easyappointments is vulnerable to session fixation. The application does not generate a new easession cookie after the user authenticates. A malicious user may create a new session cookie value and inject it to a victim. After the victim logs in, the injected cookie becomes valid, giving the attacker access to the user's account through the active session. If an attacker conducts this attack against an admin user, the attacker may escalate their privileges with the admin user being unaware. This issue is patched in commit 7f37350fab9d729a9350d96369ff0f453cf7b840 and anticipated to be part of version 1.5.0.

Published by the source

15 Apr 2023, 15:30 UTC

Last modified by the source

21 Apr 2023, 20:35 UTC

Source last checked

26 Oct 2026, 14:05 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-4qmm-cv4r-qfr4

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# Patch Next advisory brief: CVE-2023-2105

Advisory: alextselegidis/easyappointments Session Fixation vulnerability
IDs: CVE-2023-2105, GHSA-4qmm-cv4r-qfr4
Record: https://patchnext.com/advisories/cve-2023-2105 (revision 1, source checked 26 Oct 2026, 14:05 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.4)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist alextselegidis/easyappointments: affected <= 1.4.3

## Suggested inspection (read-only)
- Packagist alextselegidis/easyappointments: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on alextselegidis/easyappointments.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-4qmm-cv4r-qfr4 (GitHub-reviewed advisory GHSA-4qmm-cv4r-qfr4 lists affected ranges: Packagist alextselegidis/easyappointments >=0 <=1.4.3)

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