CVE-2021-20858 - Vulnerability Details - OpenCVE

Description

Cross-site scripting vulnerability in ELECOM LAN router WRC-2533GHBK-I firmware v1.20 and prior allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.

Published: 2021-12-01

Score: 5.4 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

ELECOM CO.,LTD.

ELECOM LAN router

affected

Version	Status	Constraints
`WRC-2533GHBK-I firmware v1.20 and prior`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:elecom:wrc-2533ghbk-i_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:elecom:wrc-2533ghbk-i:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-8267	Cross-site scripting vulnerability in ELECOM LAN router WRC-2533GHBK-I firmware v1.20 and prior allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication Single

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00585.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://jvn.jp/en/jp/JVN88993473/index.html
https://www.elecom.co.jp/news/security/20211130-01/

History

No history.

Subscriptions

Elecom Wrc-2533ghbk-i Wrc-2533ghbk-i Firmware

MITRE

Status: PUBLISHED

Assigner: jpcert

Published: 2021-12-01T02:15:51.000Z

Updated: 2024-08-03T17:53:22.852Z

Reserved: 2020-12-17T00:00:00.000Z

Link: CVE-2021-20858

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-12-01T03:15:06.983

Modified: 2026-06-17T03:34:33.163

Link: CVE-2021-20858

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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