# CVE-2026-8977: Cross-site scripting in WP GDPR Cookie Consent

> Authenticated attackers can inject arbitrary scripts via stored XSS in the WP GDPR Cookie Consent plugin, affecting all users viewing the page.

- **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:** 9 Jun 2026
- **Updated:** 9 Jun 2026
- **Also known as:** GHSA-3vwc-x4cp-8232

## What is CVE-2026-8977?

CVE-2026-8977 is a medium-severity cross-site scripting vulnerability in techjewel WP GDPR Cookie Consent, published on 9 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The WP GDPR Cookie Consent plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'ninja_gdpr_ajax_actions' AJAX action in versions up to, and including, 1.0.0. This is due to missing capability and nonce checks on the handleAjaxCalls() function, combined with insufficient input sanitization on the gdprConfig values and missing output escaping in the generateCSS() function which echoes stored configuration values directly into a <style> block rendered on wp_head. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-8977?


## How do I fix CVE-2026-8977?

No fix has been published for CVE-2026-8977 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-8977 being exploited?

There is no known exploitation of CVE-2026-8977 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-8977 and fix it if it is affected.

What it is: CVE-2026-8977 is a medium-severity cross-site scripting vulnerability in techjewel WP GDPR Cookie Consent, published on 9 Jun 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-2026-8977 in the wild and no public exploit code.

Affected product: techjewel WP GDPR Cookie Consent. 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-2026-8977/ (Markdown: https://insights.sbomify.com/CVE-2026-8977/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-8977
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-8977
- OSV: https://osv.dev/vulnerability/CVE-2026-8977

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-8977/
Summaries are generated and may contain mistakes; the official description above is the record.