# CVE-2026-15962: Deserialization in Fluent Forms Pro Add On Pack

> Authenticated attackers can exploit PHP object injection to change user passwords and take over administrator accounts if specific integrations are enabled.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Jul 2026
- **Updated:** 27 Jul 2026
- **Also known as:** GHSA-2hhm-rw5g-m2vq

## What is CVE-2026-15962?

CVE-2026-15962 is a high-severity unsafe deserialization vulnerability in techjewel Fluent Forms Pro Add On Pack, published on 26 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Fluent Forms Pro Add On Pack plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 6.2.6 via deserialization of untrusted input. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject a PHP Object. The additional presence of a POP chain allows attackers to change user passwords and potentially take over administrator accounts. Note: This can only be exploited if user update integration is enabled and a user meta field is mapped.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2026-15962?


## How do I fix CVE-2026-15962?

No fix has been published for CVE-2026-15962 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-15962 being exploited?

There is no known exploitation of CVE-2026-15962 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-15962 and fix it if it is affected.

What it is: CVE-2026-15962 is a high-severity unsafe deserialization vulnerability in techjewel Fluent Forms Pro Add On Pack, published on 26 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-15962 in the wild and no public exploit code.

Affected product: techjewel Fluent Forms Pro Add On Pack. 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-2026-15962/ (Markdown: https://insights.sbomify.com/CVE-2026-15962/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-15962
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-15962
- OSV: https://osv.dev/vulnerability/CVE-2026-15962

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-15962/
Summaries are generated and may contain mistakes; the official description above is the record.