# CVE-2021-24277: RSS for Yandex Turbo < 1.30 - Authenticated Stored Cross-Site Scripting (XSS)

> Authenticated attackers can inject malicious scripts via unsanitized inputs in the RSS for Yandex Turbo plugin settings, potentially executing code in victim browsers.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 14 May 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-58vx-vc62-43fr

## What is CVE-2021-24277?

CVE-2021-24277 is a medium-severity cross-site scripting vulnerability in Flector RSS for Yandex Turbo, published on 14 May 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

The RSS for Yandex Turbo WordPress plugin before 1.30 did not properly sanitise the user inputs from its Счетчики settings tab before outputting them back in the page, leading to authenticated stored Cross-Site Scripting issues

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

## Which versions are affected by CVE-2021-24277?

It affects 1 product.


Products: Wpuslugi Rss for Yandex Turbo.

## How do I fix CVE-2021-24277?

No fix has been published for CVE-2021-24277 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24277 being exploited?

There is no known exploitation of CVE-2021-24277 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24277 and fix it if it is affected.

What it is: CVE-2021-24277 is a medium-severity cross-site scripting vulnerability in Flector RSS for Yandex Turbo, published on 14 May 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-24277 in the wild and no public exploit code.

Affected product: Flector RSS for Yandex Turbo. 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-2021-24277/ (Markdown: https://insights.sbomify.com/CVE-2021-24277/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24277
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24277
- OSV: https://osv.dev/vulnerability/CVE-2021-24277

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-24277/
Summaries are generated and may contain mistakes; the official description above is the record.