# CVE-2026-86591: Botiga Pro < 1.6.5 - Unauthenticated Arbitrary Blog Options Update via Templates Builder REST Route

> Unauthenticated attackers can update arbitrary WordPress options and inject scripts via a REST route, leading to privilege escalation and site takeover.

- **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:** 19 Sep 2026
- **Updated:** 19 Sep 2026
- **Also known as:** GHSA-vc27-9g27-3cvj

## What is CVE-2026-86591?

CVE-2026-86591 is a critical missing authorization vulnerability in Unknown Botiga Pro, published on 19 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Botiga Pro WordPress plugin before 1.6.5 does not perform any authorisation checks on one of its REST routes, allowing unauthenticated users to update arbitrary WordPress options with arbitrary values, which could lead to privilege escalation and a full site takeover.
The same route also allows unauthenticated users to store arbitrary web scripts which are then executed on every page of the site's front end, as well as to move arbitrary posts to the trash.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-86591?


## How do I fix CVE-2026-86591?

No fix has been published for CVE-2026-86591 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-86591 being exploited?

There is no known exploitation of CVE-2026-86591 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-86591 and fix it if it is affected.

What it is: CVE-2026-86591 is a critical missing authorization vulnerability in Unknown Botiga Pro, published on 19 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-86591 in the wild and no public exploit code.

Affected product: Unknown Botiga Pro. 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-2026-86591/ (Markdown: https://insights.sbomify.com/CVE-2026-86591/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-86591
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-86591
- OSV: https://osv.dev/vulnerability/CVE-2026-86591

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-86591/
Summaries are generated and may contain mistakes; the official description above is the record.