# CVE-2025-13866: Missing authorization in Flow-Flow Social Feed Stream

> Authenticated subscribers can modify plugin settings and inject stored XSS due to missing capability checks in the Flow-Flow Social Feed Stream plugin.

- **Severity:** Medium 6.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N`)
- **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:** 12 Dec 2025
- **Updated:** 15 Dec 2025
- **Also known as:** GHSA-897c-rh8w-85pp

## What is CVE-2025-13866?

CVE-2025-13866 is a medium-severity missing authorization vulnerability in looks_awesome Flow-Flow Social Feed Stream, published on 12 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Flow-Flow Social Feed Stream plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the flow_flow_social_auth AJAX action in versions 3.0.0 to 4.7.5. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify plugin settings and store arbitrary JavaScript that executes whenever the plugin settings page is viewed.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2025-13866?


## How do I fix CVE-2025-13866?

No fix has been published for CVE-2025-13866 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-13866 being exploited?

There is no known exploitation of CVE-2025-13866 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-13866 and fix it if it is affected.

What it is: CVE-2025-13866 is a medium-severity missing authorization vulnerability in looks_awesome Flow-Flow Social Feed Stream, published on 12 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-13866 in the wild and no public exploit code.

Affected product: looks_awesome Flow-Flow Social Feed Stream. 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-2025-13866/ (Markdown: https://insights.sbomify.com/CVE-2025-13866/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-13866
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-13866
- OSV: https://osv.dev/vulnerability/CVE-2025-13866

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-13866/
Summaries are generated and may contain mistakes; the official description above is the record.