# CVE-2022-1952: eaSYNC < 1.1.16 - Unauthenticated Arbitrary File Upload

> Unauthenticated attackers can upload arbitrary files via an AJAX action, leading to remote code execution on the WordPress site.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Jul 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-cq3m-ccp4-jccg

## What is CVE-2022-1952?

CVE-2022-1952 is a critical vulnerability in Unknown Free Booking Plugin for Hotels, Restaurant and Car Rental – eaSYNC, published on 11 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Free Booking Plugin for Hotels, Restaurant and Car Rental WordPress plugin before 1.1.16 suffers from insufficient input validation which leads to arbitrary file upload and subsequently to remote code execution. An AJAX action accessible to unauthenticated users is affected by this issue. An allowlist of valid file extensions is defined but is not used during the validation steps.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2022-1952?

It affects 1 product.


Products: Syntacticsinc Easync.

## How do I fix CVE-2022-1952?

No fix has been published for CVE-2022-1952 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-1952 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-1952 exists.

Public exploit code:

- WordPress eaSYNC Booking <1.1.16 - Arbitrary File Upload (nuclei): http/cves/2022/CVE-2022-1952.yaml

## Other vulnerabilities in Unknown Free Booking Plugin for Hotels, Restaurant and Car Rental – eaSYNC

- [CVE-2023-38384](https://insights.sbomify.com/CVE-2023-38384/): WordPress eaSYNC Plugin <= 1.3.7 is vulnerable to Cross Site Scripting (XSS) (high 7.1)
- [CVE-2024-9450](https://insights.sbomify.com/CVE-2024-9450/): Cross-site request forgery in Free Booking Plugin for Hotels, Restaurants and Car Rentals (medium 6.5)
- [CVE-2025-4691](https://insights.sbomify.com/CVE-2025-4691/): Information disclosure in eaSYNC Booking – Hotels, Restaurants & Car Rentals (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-1952 and fix it if it is affected.

What it is: CVE-2022-1952 is a critical vulnerability in Unknown Free Booking Plugin for Hotels, Restaurant and Car Rental – eaSYNC, published on 11 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-1952 exists.

Affected product: Unknown Free Booking Plugin for Hotels, Restaurant and Car Rental – eaSYNC. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-1952/ (Markdown: https://insights.sbomify.com/CVE-2022-1952/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-1952
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-1952
- OSV: https://osv.dev/vulnerability/CVE-2022-1952

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-1952/
Summaries are generated and may contain mistakes; the official description above is the record.