# CVE-2021-36893: WordPress Responsive Tabs plugin <= 4.0.5 - Cross-Site Scripting (XSS) vulnerability

> Authenticated attackers can inject malicious scripts via stored XSS in the Responsive Tabs plugin, potentially compromising user sessions.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Apr 2022
- **Updated:** 28 Apr 2026
- **Also known as:** GHSA-rp23-74mj-mmv7

## What is CVE-2021-36893?

CVE-2021-36893 is a medium-severity cross-site scripting vulnerability in WP Darko Responsive Tabs (WordPress plugin), published on 11 Apr 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Authenticated (author or higher user role) Stored Cross-Site Scripting (XSS) vulnerability in Responsive Tabs (WordPress plugin) <= 4.0.5

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

## Which versions are affected by CVE-2021-36893?

It affects 1 product.


Products: Wpdarko Responsive Tabs.

## How do I fix CVE-2021-36893?

No fix has been published for CVE-2021-36893 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-36893 being exploited?

There is no known exploitation of CVE-2021-36893 in the wild and no public exploit code.

## Other vulnerabilities in WP Darko Responsive Tabs (WordPress plugin)

- [CVE-2024-4096](https://insights.sbomify.com/CVE-2024-4096/): Responsive Tabs <= 4.0.8 - Contributor+ Stored XSS (medium 5.9)
- [CVE-2024-1846](https://insights.sbomify.com/CVE-2024-1846/): Responsive Tabs < 4.0.7 - Contributor+ Stored XSS (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-36893 and fix it if it is affected.

What it is: CVE-2021-36893 is a medium-severity cross-site scripting vulnerability in WP Darko Responsive Tabs (WordPress plugin), published on 11 Apr 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-36893 in the wild and no public exploit code.

Affected product: WP Darko Responsive Tabs (WordPress plugin). 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-2021-36893/ (Markdown: https://insights.sbomify.com/CVE-2021-36893/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-36893
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-36893
- OSV: https://osv.dev/vulnerability/CVE-2021-36893

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-36893/
Summaries are generated and may contain mistakes; the official description above is the record.