# CVE-2026-8441: WP Review Slider Pro <= 12.7.2 - Unauthenticated SQL Injection via 'notinstring' Parameter

> Unauthenticated attackers can extract arbitrary database data via SQL injection in the WP Review Slider Pro plugin.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Jul 2026
- **Updated:** 2 Jul 2026
- **Also known as:** GHSA-cmjq-cjh2-v8q8

## What is CVE-2026-8441?

CVE-2026-8441 is a high-severity SQL injection vulnerability in https://wpreviewslider.com/ WP Review Slider Pro, published on 2 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The WP Review Slider Pro plugin for WordPress is vulnerable to SQL Injection via the 'notinstring' parameter of the wprp_load_more_revs AJAX action in versions up to, and including, 12.7.2. The parameter is read via $_POST['notinstring'] and passed through sanitize_text_field() — which strips HTML and whitespace but does not provide SQL safety. The value is then concatenated directly into a numeric/unquoted `AND id NOT IN (...)` clause and executed via $wpdb->get_results() without $wpdb->prepare() or intval() casting. Because the value sits in an unquoted numeric context, WordPress's wp_magic_quotes protection (which only escapes embedded quotes) is ineffective. The AJAX hook is registered via wp_ajax_nopriv_wprp_load_more_revs, and the required check_ajax_referer nonce is publicly available via wp_localize_script on any frontend page that renders the plugin shortcode, so an unauthenticated attacker who can reach a public page hosting the plugin can extract arbitrary data from the database via blind/time-based injection.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2026-8441?


## How do I fix CVE-2026-8441?

No fix has been published for CVE-2026-8441 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-8441 being exploited?

There is no known exploitation of CVE-2026-8441 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-8441 and fix it if it is affected.

What it is: CVE-2026-8441 is a high-severity SQL injection vulnerability in https://wpreviewslider.com/ WP Review Slider Pro, published on 2 Jul 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-2026-8441 in the wild and no public exploit code.

Affected product: https://wpreviewslider.com/ WP Review Slider 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-2026-8441/ (Markdown: https://insights.sbomify.com/CVE-2026-8441/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-8441
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-8441
- OSV: https://osv.dev/vulnerability/CVE-2026-8441

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-8441/
Summaries are generated and may contain mistakes; the official description above is the record.