# CVE-2021-45478: IDOR in Yordam Library Automation System

> An attacker can improperly access user-provided data due to improper parameter handling in the Yordam Library Automation System.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Mar 2023
- **Updated:** 18 May 2026
- **Also known as:** GHSA-65g3-6c83-8mv7

## What is CVE-2021-45478?

CVE-2021-45478 is a medium-severity vulnerability in Yordam Information Technologies Library Automation System, published on 2 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Improper Handling of Parameters vulnerability in Bordam Information Technologies Library Automation System allows Collect Data as Provided by Users.

This issue affects Library Automation System: before 19.2.

Weakness: CWE-233 (Improper Handling of Parameters)

## Which versions are affected by CVE-2021-45478?

It affects 1 product.


Products: Yordam Library Automation System.

## How do I fix CVE-2021-45478?

No fix has been published for CVE-2021-45478 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-45478 being exploited?

There is no known exploitation of CVE-2021-45478 in the wild and no public exploit code.

## Other vulnerabilities in Yordam Information Technologies Library Automation System

- [CVE-2021-45477](https://insights.sbomify.com/CVE-2021-45477/): IDOR in Yordam Library Automation System (medium 6.5)
- [CVE-2025-1301](https://insights.sbomify.com/CVE-2025-1301/): Reflected XSS in Yordam Informatics' Library Automation System (medium 6.1)
- [CVE-2022-2266](https://insights.sbomify.com/CVE-2022-2266/): Reflected XSS University Library Automation System (medium 6.1)
- [CVE-2021-45479](https://insights.sbomify.com/CVE-2021-45479/): XSS in Yordam Library Automation System (medium 5.4)
- [CVE-2021-45475](https://insights.sbomify.com/CVE-2021-45475/): Information disclosure in Yordam Library Information Document Automation Program (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-45478 and fix it if it is affected.

What it is: CVE-2021-45478 is a medium-severity vulnerability in Yordam Information Technologies Library Automation System, published on 2 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-45478 in the wild and no public exploit code.

Affected product: Yordam Information Technologies Library Automation System. 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-2021-45478/ (Markdown: https://insights.sbomify.com/CVE-2021-45478/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-45478
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-45478
- OSV: https://osv.dev/vulnerability/CVE-2021-45478

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-45478/
Summaries are generated and may contain mistakes; the official description above is the record.