CVE-2026-36471 Deserialization in n/a
Remote attackers can inject arbitrary values into internal request variables via crafted serialized PHP payloads in CuteNews, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-36471?
CVE-2026-36471 is a medium-severity unsafe deserialization vulnerability in n/a, published on 21 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-502
Which versions are affected by CVE-2026-36471?
How do I fix CVE-2026-36471?
No fix has been published for CVE-2026-36471 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-36471 being exploited?
There is no known exploitation of CVE-2026-36471 in the wild and no public exploit code.
Sources
Also known as GHSA-mwgw-rr28-m856.