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CVE-2026-5538

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CVE-2026-5538

Published: Apr 5, 2026

Modified: Apr 6, 2026

PUBLISHED

CVSS v3.1

6.3

MEDIUM

Description

A vulnerability was detected in QingdaoU OnlineJudge up to 1.6.1. Affected by this issue is the function service_url of the file JudgeServer.service_url of the component judge_server_heartbeat Endpoint. The manipulation results in server-side request forgery. It is possible to launch the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.

VendorProductVersions

QingdaoU

OnlineJudge

affected
1.6.0
affected
1.6.1

Weaknesses (CWE)

CWE-918

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

VDB-355291 | CTI Indicators (IOB, IOC, IOA)
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