# CVE-2025-30344: Information disclosure in OpenSlides

> Attackers can enumerate valid usernames via timing differences in login responses, exposing user existence information.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Mar 2025
- **Updated:** 21 Mar 2025
- **Also known as:** GHSA-jvfr-jf2p-rc53

## What is CVE-2025-30344?

CVE-2025-30344 is a medium-severity vulnerability in Intevation OpenSlides, published on 21 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in OpenSlides before 4.2.5. During login at the /system/auth/login/ endpoint, the system's response times differ depending on whether a user exists in the system. The timing discrepancy stems from the omitted hashing of the password (e.g., more than 100 milliseconds).

Weakness: CWE-203 (Observable Discrepancy), CWE-208 (Observable Timing Discrepancy)

## Which versions are affected by CVE-2025-30344?

It affects 1 product.


Products: Openslides Openslides.

## How do I fix CVE-2025-30344?

No fix has been published for CVE-2025-30344 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-30344 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-30344 exists.

## Other vulnerabilities in Intevation OpenSlides

- [CVE-2020-26280](https://insights.sbomify.com/CVE-2020-26280/): XSS in OpenSlides (high 8.9)
- [CVE-2026-25519](https://insights.sbomify.com/CVE-2026-25519/): OpenSlides has incorrect access control vulnerability in authentication service (high 8.1)
- [CVE-2024-22892](https://insights.sbomify.com/CVE-2024-22892/): Weak cryptography in n/a (high 7.5)
- [CVE-2024-22893](https://insights.sbomify.com/CVE-2024-22893/): Information disclosure in n/a (high 7.5)
- [CVE-2025-30342](https://insights.sbomify.com/CVE-2025-30342/): Cross-site scripting in OpenSlides (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-30344 and fix it if it is affected.

What it is: CVE-2025-30344 is a medium-severity vulnerability in Intevation OpenSlides, published on 21 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-30344 exists.

Affected product: Intevation OpenSlides. 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-2025-30344/ (Markdown: https://insights.sbomify.com/CVE-2025-30344/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-30344
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-30344
- OSV: https://osv.dev/vulnerability/CVE-2025-30344

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-30344/
Summaries are generated and may contain mistakes; the official description above is the record.