CVE-2025-31088: WordPress Paid Member Subscriptions plugin <= 2.14.3 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Cozmoslabs Paid Member Subscriptions paid-member-subscriptions allows Stored XSS.This issue affects Paid Member Subscriptions: from n/a through <= 2.14.3.
Security readout for executives and security teams
Plain-English summary
A logged-in attacker could store malicious script through the Paid Member Subscriptions WordPress plugin, affecting pages viewed by another user. Business impact is moderate: account/session risk, content manipulation, and operational disruption are possible, but the provided sources do not show active exploitation.
Executive priority
Treat as a near-term maintenance security issue, not an emergency based on the supplied evidence. Prioritize faster for public membership sites or sites where low-privileged users can create content reviewed by staff.
Technical view
CVE-2025-31088 is a stored XSS issue in Cozmoslabs Paid Member Subscriptions through 2.14.3. It maps to CWE-79 with CVSS 3.1 score 6.5. The vector indicates network access, low complexity, low privileges, required user interaction, changed scope, and low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to WordPress sites running Cozmoslabs Paid Member Subscriptions versions through 2.14.3. The CVSS vector indicates exploitation requires a low-privileged authenticated user and a victim interaction path.
Exploitation context
The provided bundle does not identify CISA KEV listing or active exploitation. Stored XSS generally becomes higher risk on sites with many users, untrusted registrations, admin review workflows, or sensitive membership data.
Researcher notes
The source bundle names the flaw class and affected upper bound but does not provide sink, parameter, proof-of-concept, patched version, or exploit telemetry. Avoid assuming unauthenticated exploitation; PR:L is explicit in the CVSS vector.
Mitigation direction
Inventory WordPress sites using Paid Member Subscriptions.
Identify plugin versions and flag any through 2.14.3.
Check Cozmoslabs and Patchstack guidance for fixed versions or mitigations.
Update the plugin when a vendor-supported fixed release is available.
Temporarily restrict untrusted account creation if exposure is confirmed.
Validation and detection
Confirm installed plugin name is paid-member-subscriptions.
Record exact plugin version from WordPress administration or asset inventory.
Review membership workflows where low-privileged users can submit stored content.
Check logs for suspicious low-privileged submissions before administrator page views.
Verify remediation by confirming the affected version is no longer installed.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · medium confidence lookup
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-79 · source CWE mapping
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.