Description
Server-Side Template Injection (SSTI) in Wirtualna Uczelnia allows an unauthenticated attacker to perform Remote Code Execution (RCE). In the endpoint redirectToUrl and parameter redirectUrlParameter, insufficient input validation permits injection of arbitrary template expressions that are executed on the server. Successful exploitation can allow an attacker to run remote commands, including establishing a reverse shell.

This issue affects Wirtualna Uczelnia versions up to wu#2016.437.295#0#20260327_105545
Published: 2026-06-02
Score: 9.3 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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History

Tue, 02 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 02 Jun 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Simple Sa
Simple Sa wirtualna Uczelnia
Vendors & Products Simple Sa
Simple Sa wirtualna Uczelnia

Tue, 02 Jun 2026 10:00:00 +0000

Type Values Removed Values Added
Description Server-Side Template Injection (SSTI) in Wirtualna Uczelnia allows an unauthenticated attacker to perform Remote Code Execution (RCE). In the endpoint redirectToUrl and parameter redirectUrlParameter, insufficient input validation permits injection of arbitrary template expressions that are executed on the server. Successful exploitation can allow an attacker to run remote commands, including establishing a reverse shell. This issue affects Wirtualna Uczelnia versions up to wu#2016.437.295#0#20260327_105545
Title Server-Side Template Injection (SSTI) in Wirtualna Uczelnia
Weaknesses CWE-1336
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L'}


Subscriptions

Simple Sa Wirtualna Uczelnia
cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2026-06-02T13:15:12.913Z

Reserved: 2026-03-31T12:34:08.476Z

Link: CVE-2026-34906

cve-icon Vulnrichment

Updated: 2026-06-02T13:14:47.000Z

cve-icon NVD

Status : Deferred

Published: 2026-06-02T10:16:22.733

Modified: 2026-06-02T13:54:55.990

Link: CVE-2026-34906

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-02T12:30:08Z

Weaknesses