# CVE-2023-49770: WordPress Smart External Link Click Monitor [Link Log] Plugin <= 5.0.2 is vulnerable to Cross Site Scripting (XSS)

> Stored XSS in WordPress Smart External Link Click Monitor plugin allows attackers to inject malicious scripts, potentially leading to session hijacking or code execution.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L`)
- **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:** 14 Dec 2023
- **Updated:** 28 Apr 2026
- **Also known as:** GHSA-vjjw-5fc7-7h6p

## What is CVE-2023-49770?

CVE-2023-49770 is a medium-severity cross-site scripting vulnerability in Peter Raschendorfer Smart External Link Click Monitor [Link Log], published on 14 Dec 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Peter Raschendorfer Smart External Link Click Monitor [Link Log] allows Stored XSS.This issue affects Smart External Link Click Monitor [Link Log]: from n/a through 5.0.2.

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

## Which versions are affected by CVE-2023-49770?

It affects 1 product.


Products: Petersplugins Smart External Link Click Monitor \[Link Log\].

## How do I fix CVE-2023-49770?

No fix has been published for CVE-2023-49770 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-49770 being exploited?

There is no known exploitation of CVE-2023-49770 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-49770 and fix it if it is affected.

What it is: CVE-2023-49770 is a medium-severity cross-site scripting vulnerability in Peter Raschendorfer Smart External Link Click Monitor [Link Log], published on 14 Dec 2023. 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-2023-49770 in the wild and no public exploit code.

Affected product: Peter Raschendorfer Smart External Link Click Monitor [Link Log]. 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-2023-49770/ (Markdown: https://insights.sbomify.com/CVE-2023-49770/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-49770
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-49770
- OSV: https://osv.dev/vulnerability/CVE-2023-49770

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-49770/
Summaries are generated and may contain mistakes; the official description above is the record.