# CVE-2026-0813: Short Link <= 1.0 - Authenticated (Administrator+) Stored Cross-Site Scripting via Administration Settings Page

> Administrators can inject malicious scripts via settings, leading to code execution or account takeover for other users.

- **Severity:** Medium 4.4 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 14 Jan 2026
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-2rc9-49h8-rj22

## What is CVE-2026-0813?

CVE-2026-0813 is a medium-severity cross-site scripting vulnerability in prasannasp Short Link, published on 14 Jan 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The Short Link plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'short_link_post_title' and 'short_link_page_title' parameters in all versions up to, and including, 1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the injected page.

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

## Which versions are affected by CVE-2026-0813?


## How do I fix CVE-2026-0813?

No fix has been published for CVE-2026-0813 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-0813 being exploited?

There is no known exploitation of CVE-2026-0813 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-0813 and fix it if it is affected.

What it is: CVE-2026-0813 is a medium-severity cross-site scripting vulnerability in prasannasp Short Link, published on 14 Jan 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-0813 in the wild and no public exploit code.

Affected product: prasannasp Short Link. 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-2026-0813/ (Markdown: https://insights.sbomify.com/CVE-2026-0813/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-0813
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-0813
- OSV: https://osv.dev/vulnerability/CVE-2026-0813

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-0813/
Summaries are generated and may contain mistakes; the official description above is the record.