CVE-2026-2113 yuan1994 tpadmin WebUploader preview.php deserialization

Medium 6.9 Published Updated

Remote attackers can exploit a deserialization flaw in the WebUploader preview script of the unsupported tpadmin application to execute arbitrary code.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-2113?

CVE-2026-2113 is a medium-severity unsafe deserialization vulnerability in yuan1994 tpadmin, published on 7 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A security vulnerability has been detected in yuan1994 tpadmin up to 1.3.12. This affects an unknown part in the library /public/static/admin/lib/webuploader/0.1.5/server/preview.php of the component WebUploader. The manipulation leads to deserialization. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-434, CWE-502, CWE-20

Which versions are affected by CVE-2026-2113?

It affects 1 product.

Products include Tpadmin Project Tpadmin.

How do I fix CVE-2026-2113?

No fix has been published for CVE-2026-2113 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-2026-2113 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2113 exists.

Public exploit code: 1 Nuclei template and 1 proofs of concept on GitHub.

Sources

Also known as GHSA-2pp3-pxpf-p8gg.

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