TI-2020-09286 Aliases CVE-2020-11584 GHSA-hgjq-9w99-jfwx

A GET-based XSS reflected vulnerability in Plesk Onyx 17.8.11 allows remote…

LOW 29CWE-79Published 2020-08-03 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

A GET-based XSS reflected vulnerability in Plesk Onyx 17.8.11 allows remote unauthenticated users to inject arbitrary JavaScript, HTML, or CSS via a GET parameter.

Why it matters now

EPSS 0.00905 60th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:plesk:onyx:17.8.11:::::::*	17.8.11	Vulnerable	Plesk
cpe:2.3:o:linux:linux_kernel:-:::::::*	not specified by NVD	Running on	Linux

cpe:2.3:a:plesk:onyx:17.8.11:*:*:*:*:*:*:* Versions 17.8.11 Vulnerable ·Plesk
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-11584
2026-10-03 Alias added: GHSA-hgjq-9w99-jfwx

References

Other 1

https://medium.com/%400x00crash/xss-reflected-in-plesk-onyx-and-obsidian-1173a3eaffb5

TI-2023-23475 Plesk Onyx 17.8.11 has accessKeyId and secretAccessKey fields that are related to an… CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences