# CVE-2020-8493: Cross-site scripting in n/a

> An authenticated administrator can inject malicious scripts into webTA configuration fields, potentially leading to code execution or account takeover for other users.

- **Severity:** Medium 6.9 (`CVSS:3.0/AC:L/AV:N/A:N/C:L/I:H/PR:H/S:C/UI:R`)
- **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:** 30 Jan 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-52p7-j296-qwmp

## What is CVE-2020-8493?

CVE-2020-8493 is a medium-severity cross-site scripting vulnerability in n/a, published on 30 Jan 2020. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

A stored XSS vulnerability in Kronos Web Time and Attendance (webTA) affects 3.8.x and later 3.x versions before 4.0 via multiple input fields (Login Message, Banner Message, and Password Instructions) of the com.threeis.webta.H261configMenu servlet via an authenticated administrator.

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

## Which versions are affected by CVE-2020-8493?

It affects 1 product.


Products: Kronos Web Time and Attendance.

## How do I fix CVE-2020-8493?

No fix has been published for CVE-2020-8493 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-8493 being exploited?

There is no known exploitation of CVE-2020-8493 in the wild and no public exploit code.

Public exploit code:

- Kronos WebTA 4.0 - Authenticated Remote Privilege Escalation (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2020-35604](https://insights.sbomify.com/CVE-2020-35604/): XML external entity in n/a (critical 9.8)
- [CVE-2020-8494](https://insights.sbomify.com/CVE-2020-8494/): Privilege escalation in n/a (high 7.5)
- [CVE-2020-8495](https://insights.sbomify.com/CVE-2020-8495/): Privilege escalation in n/a (high 7.5)
- [CVE-2020-8496](https://insights.sbomify.com/CVE-2020-8496/): Cross-site scripting in n/a (medium 6.9)
- [CVE-2020-14982](https://insights.sbomify.com/CVE-2020-14982/): SQL injection in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-8493 and fix it if it is affected.

What it is: CVE-2020-8493 is a medium-severity cross-site scripting vulnerability in n/a, published on 30 Jan 2020. 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-2020-8493 in the wild and no public exploit code.

Affected product: n/a. 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-2020-8493/ (Markdown: https://insights.sbomify.com/CVE-2020-8493/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-8493
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-8493
- OSV: https://osv.dev/vulnerability/CVE-2020-8493

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-8493/
Summaries are generated and may contain mistakes; the official description above is the record.