# CVE-2024-21584: Cross-site scripting in Pleasanter

> An attacker can execute arbitrary scripts in a user's browser via a crafted URL in Pleasanter, potentially compromising user sessions.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 12 Mar 2024
- **Updated:** 13 Mar 2025
- **Also known as:** GHSA-4j5j-2gqc-53xf

## What is CVE-2024-21584?

CVE-2024-21584 is a medium-severity cross-site scripting vulnerability in Implem Inc. Pleasanter , published on 12 Mar 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Pleasanter 1.3.49.0 and earlier contains a cross-site scripting vulnerability. If an attacker tricks the user to access the product with a specially crafted URL and perform a specific operation, an arbitrary script may be executed on the web browser of the user.

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

## Which versions are affected by CVE-2024-21584?

It affects 1 product.


Products: Pleasanter Pleasanter.

## How do I fix CVE-2024-21584?

No fix has been published for CVE-2024-21584 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-21584 being exploited?

There is no known exploitation of CVE-2024-21584 in the wild and no public exploit code.

## Other vulnerabilities in Implem Inc. Pleasanter 

- [CVE-2023-32608](https://insights.sbomify.com/CVE-2023-32608/): Path traversal in Pleasanter (Community Edition and Enterprise Edition) (medium 6.5)
- [CVE-2023-46688](https://insights.sbomify.com/CVE-2023-46688/): Open redirect in Pleasanter (medium 6.1)
- [CVE-2023-34439](https://insights.sbomify.com/CVE-2023-34439/): Cross-site scripting in Pleasanter (medium 5.4)
- [CVE-2023-32607](https://insights.sbomify.com/CVE-2023-32607/): Cross-site scripting in Pleasanter (Community Edition and Enterprise Edition) (medium 5.4)
- [CVE-2023-30758](https://insights.sbomify.com/CVE-2023-30758/): Cross-site scripting in Pleasanter (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-21584 and fix it if it is affected.

What it is: CVE-2024-21584 is a medium-severity cross-site scripting vulnerability in Implem Inc. Pleasanter , published on 12 Mar 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2024-21584 in the wild and no public exploit code.

Affected product: Implem Inc. Pleasanter . 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-2024-21584/ (Markdown: https://insights.sbomify.com/CVE-2024-21584/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-21584
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-21584
- OSV: https://osv.dev/vulnerability/CVE-2024-21584

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-21584/
Summaries are generated and may contain mistakes; the official description above is the record.