CVE-2026-110384

7.1High

Published 17 Oct 2026 · NVD status: Received · AI triage by gemini-3.8-flash

7.1High

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required
Impact: Limited impact
Weakness: CWE-79

Impact

Attackers can execute arbitrary JavaScript in a victim's browser session to steal cookies or hijack accounts. This requires an unauthenticated attacker to trick a user into clicking a crafted link.

Root cause

The plugin fails to sanitize and neutralize user-supplied input before reflecting it back in the web page response.

Affected systems

Fancy Comments WordPress (fancy-facebook-comments) plugin through 1.2.21

CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Fix & remediation

Upgrade to a version newer than 1.2.21 once released, or deactivate and delete the fancy-facebook-comments plugin until a patched version is available.

shell

$ wp plugin deactivate fancy-facebook-comments

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Heateor Support Fancy Comments WordPress fancy-facebook-comments allows Reflected XSS.This issue affects Fancy Comments WordPress: from n/a through 1.2.21.

References

https://patchstack.com/database/wordpress/plugin/fancy-facebook-comments/vulnerability/wordpress-fancy-comments-wordpress-plugin-1-2-21-cross-site-scripting-xss-vulnerability?_s_id=cve

Source: nvd.nist.gov/vuln/detail/CVE-2026-110384