# CVE-2026-88912: rtMedia for WordPress, BuddyPress and bbPress < 4.7.12 - Subscriber+ Arbitrary Activity Privacy Modification via IDOR

> Subscribers can modify privacy settings of other users' activities due to missing ownership checks, allowing unauthorized data modification.

- **Severity:** Medium 4.2 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/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:** 13 Sep 2026
- **Updated:** 13 Sep 2026
- **Also known as:** GHSA-fvcq-6v6m-mmrf

## What is CVE-2026-88912?

CVE-2026-88912 is a medium-severity missing authorization vulnerability in Unknown rtMedia for WordPress, BuddyPress and bbPress, published on 13 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The rtMedia for WordPress, BuddyPress and bbPress WordPress plugin before 4.7.12 does not check ownership before changing the privacy level of an activity and its attached media, relying only on a nonce shared with every logged-in user, allowing users with a subscriber-level account or above to make another user's private activity public or hide it.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-88912?


## How do I fix CVE-2026-88912?

No fix has been published for CVE-2026-88912 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-88912 being exploited?

There is no known exploitation of CVE-2026-88912 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-88912 and fix it if it is affected.

What it is: CVE-2026-88912 is a medium-severity missing authorization vulnerability in Unknown rtMedia for WordPress, BuddyPress and bbPress, published on 13 Sep 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-2026-88912 in the wild and no public exploit code.

Affected product: Unknown rtMedia for WordPress, BuddyPress and bbPress. 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-2026-88912/ (Markdown: https://insights.sbomify.com/CVE-2026-88912/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-88912
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-88912
- OSV: https://osv.dev/vulnerability/CVE-2026-88912

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-88912/
Summaries are generated and may contain mistakes; the official description above is the record.