CVE-2025-23853

WordPress NoFollow Free plugin <= 1.6.3 - Reflected Cross Site Scripting (XSS) vulnerability

Published Feb 14, 2025 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in michelem NoFollow Free nofollow-free allows Reflected XSS.This issue affects NoFollow Free: from n/a through <= 1.6.3.

Analysis

Technical impact

The plugin contains an improper neutralization of input during web page generation that allows reflected Cross‑Site Scripting. This vulnerability can enable an attacker to inject and execute arbitrary client‑side scripts in the browsers of users who visit crafted URLs, potentially leading to session hijacking, defacement, or phishing attacks. The weakness corresponds to CWE‑79: Improper Neutralization of Input During Web Page Generation.

Affected Systems

WordPress plugin NoFollow Free, versions up to and including 1.6.3. Only the listed versions are affected; newer releases are presumed not vulnerable.

Risk and Exploitability

The CVSS score of 7.1 indicates a high impact if successfully exploited. The EPSS score of less than 1% suggests that widespread exploitation is unlikely, and the vulnerability is not currently listed in the CISA KEV catalog. Based on the description, it is inferred that the vulnerability can be exploited by embedding malicious scripts in URLs that a victim is directed to, thus social engineering is the most likely attack vector.

Affected Products

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

Vendor Product Default status Versions

michelem

NoFollow Free

unaffected

Version	Status	Constraints
`0`	affected	≤ 1.6.3

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Update NoFollow Free to the latest release (≥1.6.4).
If an update is not yet available, remove or disable the plugin to eliminate the attack surface.
Deploy a web application firewall or enforce a strict content‑security policy to block reflected XSS payloads until a fix is applied.

Generated by OpenCVE AI on May 2, 2026 at 04:31 UTC.

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2025-3476	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in michelem NoFollow Free allows Reflected XSS. This issue affects NoFollow Free: from n/a through 1.6.3.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.250% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://patchstack.com/database/Wordpress/Plugin/nofollow-free/vulnerability/wordpress-nofollow-free-plugin-1-6-3-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve

History

Apr 23, 2026 3:00 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}`

Apr 1, 2026 11:45 PM Description updated. References updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in michelem NoFollow Free allows Reflected XSS. This issue affects NoFollow Free: from n/a through 1.6.3.	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in michelem NoFollow Free nofollow-free allows Reflected XSS.This issue affects NoFollow Free: from n/a through <= 1.6.3.
References	https://patchstack.com/database/wordpress/plugin/nofollow-free/vulnerability/wordpress-nofollow-free-plugin-1-6-3-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve	https://patchstack.com/database/Wordpress/Plugin/nofollow-free/vulnerability/wordpress-nofollow-free-plugin-1-6-3-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
Metrics	cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}`

Jul 14, 2025 1:45 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00032}`	epss `{'score': 0.00035}`

Jul 13, 2025 1:45 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00072}`	epss `{'score': 0.00032}`

Feb 14, 2025 4:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Feb 14, 2025 1:00 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in michelem NoFollow Free allows Reflected XSS. This issue affects NoFollow Free: from n/a through 1.6.3.
Title		WordPress NoFollow Free plugin <= 1.6.3 - Reflected Cross Site Scripting (XSS) vulnerability
Weaknesses		CWE-79
References		https://patchstack.com/database/wordpress/plugin/nofollow-free/vulnerability/wordpress-nofollow-free-plugin-1-6-3-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
Metrics		cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}`