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. …

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Risk assessment & exploitation conditions
Attack chain visualization
Remediation with exact patch versions
Threat intelligence from 22 sources
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Send HTTP request to preview.php

Exploit

Trigger unsafe deserialization in WebUploader

Impact

Execute arbitrary code with application privileges

Access

Send HTTP request to preview.php

Exploit

Trigger unsafe deserialization in WebUploader

Impact

Execute arbitrary code with application privileges

Vulnerability AssessmentAI

Exploitation	WebUploader component version 0.1.5 accessible at /public/static/admin/lib/webuploader/0.1.5/server/preview.php on yuan1994 tpadmin up to version 1.3.12. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 7.3 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	A remote attacker (requires authentication) could exploit this flaw, deserialization.
Remediation	Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Inventory all systems running tpadmin up to version 1.3.12 and isolate affected instances from critical networks if possible. …

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-2113 vulnerability details – vuln.today

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PHP CVE-2026-2113

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

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Attack ChainAIDerived

Vulnerability AssessmentAI

Recommended ActionAI

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External POC / Exploit Code