High · CVSS 7.1CVE-2026-57399

CVE-2026-57399

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Proxy & VPN Blocker Proxy & VPN Blocker proxy-vpn-blocker allows Stored XSS.This issue affects Proxy & VPN Blocker: from n/a through <= 3.5.8.

Published Jul 13, 2026Updated Jul 13, 2026Source checked Jul 18, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.1
Exploitation: No known exploitation
Affected software: Not mapped
Fix availability: Not reported

Recommended action

Review the upstream advisory, identify the affected product in your inventory, and apply the vendor update when one is available.

What this means

CVE-2026-57399 is listed in the HOL Guard supply-chain feed, but affected software is not mapped to a package. Review the upstream advisory for the affected product and vendor guidance. Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Proxy & VPN Blocker Proxy & VPN Blocker proxy-vpn-blocker allows Stored XSS.This issue affects Proxy & VPN Blocker: from n/a through <= 3.5.8.

Affected software

Affected software not mapped. Review the upstream record for vendor-specific product and version guidance.

Evidence and references

https://patchstack.com/database/Wordpress/Plugin/proxy-vpn-blocker/vulnerability/wordpress-proxy-vpn-blocker-plugin-3-5-8-cross-site-scripting-xss-vulnerability?_s_id=cve

Source metadata

Published

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High · CVSS 7.1CVE-2026-57399

CVE-2026-57399

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Proxy & VPN Blocker Proxy & VPN Blocker proxy-vpn-blocker allows Stored XSS.This issue affects Proxy & VPN Blocker: from n/a through <= 3.5.8.

Published Jul 13, 2026Updated Jul 13, 2026Source checked Jul 18, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.1
Exploitation: No known exploitation
Affected software: Not mapped
Fix availability: Not reported

Recommended action

Review the upstream advisory, identify the affected product in your inventory, and apply the vendor update when one is available.

What this means

CVE-2026-57399 is listed in the HOL Guard supply-chain feed, but affected software is not mapped to a package. Review the upstream advisory for the affected product and vendor guidance. Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Proxy & VPN Blocker Proxy & VPN Blocker proxy-vpn-blocker allows Stored XSS.This issue affects Proxy & VPN Blocker: from n/a through <= 3.5.8.

Affected software

Affected software not mapped. Review the upstream record for vendor-specific product and version guidance.

Evidence and references

https://patchstack.com/database/Wordpress/Plugin/proxy-vpn-blocker/vulnerability/wordpress-proxy-vpn-blocker-plugin-3-5-8-cross-site-scripting-xss-vulnerability?_s_id=cve

Source metadata

Published

Jul 13, 2026

Modified

Jul 13, 2026

Source checked

Jul 18, 2026

Reported by NVD (nvd).

Keep this signal in your Guard workflow.

HOL Guard can help your team monitor supply-chain activity while the upstream record is clarified.

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Jul 13, 2026

Modified

Jul 13, 2026

Source checked

Jul 18, 2026

Reported by NVD (nvd).

Keep this signal in your Guard workflow.

HOL Guard can help your team monitor supply-chain activity while the upstream record is clarified.

Explore HOL Guard