Which versions of PHP are affected by CVE-2026-2113?

A high-severity vulnerability in yuan1994 tpadmin's file upload component (WebUploader) could allow attackers to execute unauthorized actions through the preview.php file.

Is there a public PoC exploit available for CVE-2026-2113?

Yes, a public proof-of-concept exploit is available for CVE-2026-2113. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-2113?

Within 24 hours: Inventory all systems running tpadmin up to version 1.3.12 and isolate affected instances from critical networks if possible. Within 7 days: Implement WAF rules to block requests to /public/static/admin/lib/webuploader paths and disable the WebUploader feature if not essential to operations. Within 30 days: Contact yuan1994 for patch availability, evaluate alternative file upload solutions, or plan migration to a patched version when available.

PHP CVE-2026-2113

Q: What is the CVSS score of CVE-2026-2113?

CVE-2026-2113 has a CVSS 4.0 base score of 5.5 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

MEDIUM

Improper Input Validation (CWE-20)

2026-02-07 cna@vuldb.com

PHP Deserialization

5.5

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

HIGH MEDIUM

CVSS changed

Apr 29, 2026 - 01:11 NVD

7.3 (HIGH) 5.5 (MEDIUM)

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Mar 05, 2026 - 20:34 vuln.today

Public exploit code

CVE Published

Feb 07, 2026 - 21:15 nvd

HIGH 7.3

DescriptionCVE.org

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.

AnalysisAI

Unsafe deserialization in yuan1994 tpadmin versions up to 1.3.12 allows remote attackers to execute arbitrary code via the WebUploader preview.php component without authentication. Public exploit code exists for this vulnerability, and affected installations running unsupported versions face immediate risk. The flaw enables complete system compromise with no patch available from the maintainer.

Technical ContextAI

Classified as CWE-20 (Improper Input Validation). Affects Tpadmin. 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.