# CVE-2026-16062: Event Booking Manager for WooCommerce < 5.3.7 - Contributor+ PHP Object Injection via Event Timeline and FAQ Content

> Contributors can inject PHP objects via event content fields, potentially leading to code execution or data theft if a POP chain exists.

- **Severity:** Medium 6.6 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Aug 2026
- **Updated:** 4 Aug 2026
- **Also known as:** GHSA-xh9j-gpmv-5c2v

## What is CVE-2026-16062?

CVE-2026-16062 is a medium-severity unsafe deserialization vulnerability in Unknown Event Booking Manager for WooCommerce, published on 2 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The Event Booking Manager for WooCommerce  WordPress plugin before 5.3.7 does not prevent the deserialization of user-controlled input in some of its event content fields, allowing users with Contributor-level access and above to inject PHP objects. No POP chain is present in the Event Booking Manager for WooCommerce  WordPress plugin before 5.3.7 itself, but if one is present via another installed Event Booking Manager for WooCommerce  WordPress plugin before 5.3.7 or , this could lead to actions such as arbitrary file deletion, sensitive data retrieval, or remote code execution. This is an incomplete fix of the Event Booking Manager for WooCommerce  WordPress plugin before 5.3.7's earlier object-injection advisories.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2026-16062?


## How do I fix CVE-2026-16062?

No fix has been published for CVE-2026-16062 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-16062 being exploited?

There is no known exploitation of CVE-2026-16062 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-16062 and fix it if it is affected.

What it is: CVE-2026-16062 is a medium-severity unsafe deserialization vulnerability in Unknown Event Booking Manager for WooCommerce, published on 2 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-16062 in the wild and no public exploit code.

Affected product: Unknown Event Booking Manager for WooCommerce. 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-2026-16062/ (Markdown: https://insights.sbomify.com/CVE-2026-16062/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-16062
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-16062
- OSV: https://osv.dev/vulnerability/CVE-2026-16062

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-16062/
Summaries are generated and may contain mistakes; the official description above is the record.