# CVE-2025-61775: Vickey's unexpired email confirmation link can be reused to send repeated confirmation emails

> Attackers can reuse unexpired email confirmation links to send repeated emails, causing unintended traffic and potential service disruption.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Oct 2025
- **Updated:** 16 Oct 2025
- **Also known as:** GHSA-q6hp-37x8-fhm7

## What is CVE-2025-61775?

CVE-2025-61775 is a medium-severity vulnerability in Whimsies-YAT Vickey, published on 13 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Vickey is a Misskey-based microblogging platform. A vulnerability exists in Vickey prior to version 2025.10.0 where unexpired email confirmation links can be reused multiple times to send repeated confirmation emails to a verified email address. Under certain conditions, a verified email address could receive repeated confirmation messages if the verification link was accessed multiple times. This issue may result in unintended email traffic but does not expose user data. The issue was addressed in version 2025.10.0 by improving validation logic to ensure verification links behave as expected after completion.

Weakness: CWE-770 (Allocation of Resources Without Limits or Throttling), CWE-613 (DEPRECATED: Insufficient Session Expiration)

## Which versions are affected by CVE-2025-61775?


## How do I fix CVE-2025-61775?

No fix has been published for CVE-2025-61775 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-61775 being exploited?

There is no known exploitation of CVE-2025-61775 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-61775 and fix it if it is affected.

What it is: CVE-2025-61775 is a medium-severity vulnerability in Whimsies-YAT Vickey, published on 13 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-61775 in the wild and no public exploit code.

Affected product: Whimsies-YAT Vickey. 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-2025-61775/ (Markdown: https://insights.sbomify.com/CVE-2025-61775/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-61775
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-61775
- OSV: https://osv.dev/vulnerability/CVE-2025-61775

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-61775/
Summaries are generated and may contain mistakes; the official description above is the record.