CVE-2026-3163

MediumPublic PoC

Published: 25 February 2026

Published

25 February 2026

Modified

25 February 2026

KEV Added

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Patch

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CVSS Score v4 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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 Score 0.0005 16.2th percentile

Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-3163 is a medium-severity SSRF (CWE-918) vulnerability in Remyandrade Website Link Extractor. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 16.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 AC-4 (Information Flow Enforcement) and SI-10 (Information Input Validation).

Deeper analysis

CVE-2026-3163 is a server-side request forgery (SSRF) vulnerability, associated with CWE-918, affecting SourceCodester Website Link Extractor version 1.0. The flaw exists in the file_get_contents function of the URL Handler component, where manipulation enables SSRF. Published on 2026-02-25, it carries a CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).

Remote attackers with low privileges can exploit this vulnerability over the network with low complexity and no user interaction. Exploitation triggers the server to make unintended requests, potentially allowing access to internal resources, with limited impacts on confidentiality, integrity, and availability.

Advisories on VulDB (ctiid.347670, id.347670, submit.758932) and a Medium post document the issue and public exploit disclosure. The vendor site at sourcecodester.com is referenced, but specific patch or mitigation details are not outlined in the available descriptions.

The exploit has been disclosed publicly and may be used, heightening the risk of real-world attacks.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-8513

Vulnerability details

A vulnerability has been found in SourceCodester Website Link Extractor 1.0. This vulnerability affects the function file_get_contents of the component URL Handler. The manipulation leads to server-side request forgery. It is possible to initiate the attack remotely. The exploit has…

been disclosed to the public and may be used.

CWE(s): CWE-918

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

SSRF in public-facing web app (file_get_contents URL handler) directly enables remote exploitation of the application to force unintended outbound requests to internal resources.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1