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Wordpress Plugin CVE-2025-57931

MEDIUM
Cross-Site Request Forgery (CSRF) (CWE-352)
2025-10-29 audit@patchstack.com
5.3
CVSS 3.1 · Vendor: patchstack
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V3 - Web Frontend Security Anti-CSRF tokens, SameSite cookies
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

While CVSS scoring is unavailable, the vulnerability characteristics suggest moderate attack complexity: CSRF requires both victim interaction and prior authentication. The extremely low EPSS score (0.02%, percentile 4%) indicates negligible real-world exploitation likelihood despite the theoretical risk. No KEV confirmation or public exploit code availability was identified, further supporting low active threat status. SSVC framing shows exploitation is possible but not automated (requires social engineering to trick an admin into visiting a malicious page), and technical impact is limited to plugin configuration rather than remote code execution or data theft. This is a classic example of a valid vulnerability with significant real-world risk gap-patch it during normal maintenance cycles, but it does not warrant emergency response.

Exploit ScenarioDerived

An attacker creates a malicious webpage containing hidden HTML forms or JavaScript that targets the Ays Pro Popup box plugin's admin endpoints (e.g., to disable the plugin, modify popup content, or inject malicious code into popups). When a site administrator visits the attacker's page while logged into WordPress, the browser automatically includes the admin's session cookies, causing the unprotected admin action to execute without the administrator's knowledge. This could result in defaced popups, data harvesting, or lateral privilege escalation if the popup system is chained with other plugin vulnerabilities. No public exploit code or active exploitation in the wild has been confirmed, reducing practical risk.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Apr 01, 2026

Cross-site request forgery in Ays Pro Popup box WordPress plugin versions up to 5.5.4 allows attackers to perform unauthorized actions (such as modifying plugin settings or creating popups) on behalf of authenticated administrators without their knowledge or consent. The vulnerability requires victim interaction (clicking a malicious link while logged in) but carries low exploitation probability (EPSS 0.02%, percentile 4%), suggesting limited real-world attack pressure despite the theoretical risk.

RemediationAI

Update Ays Pro Popup box to version 5.5.5 or later, which includes CSRF protections via proper nonce validation. Site administrators should navigate to the WordPress plugin dashboard, locate Ays Pro Popup box in the installed plugins list, and click 'Update' if available. If automatic updates are not enabled, download the latest version from the WordPress plugin repository and upload it manually. After patching, verify that popup management functions (creating, editing, deleting popups) require manual confirmation and are no longer susceptible to cross-origin requests. As a temporary mitigation for sites unable to patch immediately, restrict admin access via Web Application Firewall (WAF) rules or IP allowlisting, though this does not remediate the underlying vulnerability.

Affected ProductsAI

Ays Pro Popup box (WordPress plugin) versions from an unspecified baseline through 5.5.4 are affected. The exact earliest vulnerable version is not documented in available data. The plugin is identified by CPE data relating to WordPress plugins and is hosted on the WordPress plugin repository. Patch Stack database reference: https://patchstack.com/database/Wordpress/Plugin/ays-popup-box/vulnerability/wordpress-popup-box-plugin-5-5-4-cross-site-request-forgery-csrf-vulnerability

Affects your stack

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Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This is a CSRF vulnerability (CWE-352) affecting the Ays Pro Popup box WordPress plugin, which handles popup creation and management. CSRF flaws occur when web applications fail to implement proper anti-forgery tokens (such as nonces in WordPress) in state-changing requests. The vulnerability indicates that sensitive plugin actions lack adequate CSRF protections, allowing an attacker to craft malicious HTML or JavaScript that, when visited by a logged-in administrator, will execute unwanted operations against the plugin without the user's explicit consent. WordPress uses nonce mechanisms to prevent CSRF; absence or improper validation of nonces in this plugin's admin handlers is the root cause.

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Severity by source

Vendor (patchstack) PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Primary rating from Vendor (patchstack) · only source for this CVE.

CVSS VectorVendor: patchstack

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

2
CVSS changed
Apr 23, 2026 - 15:43 NVD
5.3 (MEDIUM)
CVE Published
Oct 29, 2025 - 04:15 nvd
N/A

DescriptionCVE.org

Cross-Site Request Forgery (CSRF) vulnerability in Ays Pro Popup box ays-popup-box allows Cross Site Request Forgery.This issue affects Popup box: from n/a through <= 5.5.4.

Threat Intelligence Overview

EPSS Score
0.0%
Top 96% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Request Forgery exploits the automatic credential inclusion behavior of web browsers.

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