Security readout for executives and security teams
Plain-English summary
CVE-2025-55709 is a stored cross-site scripting issue in the WordPress Visual Composer Website Builder plugin before 45.15.0. An authenticated attacker with low privileges may be able to store malicious content that runs when another user views it, potentially affecting confidentiality, integrity, and availability at a limited level.
Executive priority
Treat this as a moderate-priority WordPress plugin patch. Patch public or multi-author sites first, especially where non-admin users can edit pages or content viewed by privileged staff.
Technical view
The CVE describes CWE-79 improper input neutralization during web page generation in the visualcomposer package. CVSS 3.1 is 6.5 with network attack vector, low complexity, low privileges required, user interaction required, and changed scope. The provided sources do not identify the exact vulnerable parameter or component.
Likely exposure
Exposure is limited to WordPress sites using Visual Composer Website Builder versions earlier than 45.15.0. Risk is higher where low-privileged authenticated users can create or modify content that administrators, editors, or visitors later view.
Exploitation context
The source bundle does not show CISA KEV listing or cite active exploitation. The vulnerability requires an authenticated user and a separate user interaction event, which lowers urgency compared with unauthenticated XSS but still matters on multi-user WordPress sites.
Researcher notes
Evidence is sufficient for affected product, version boundary, CWE, and CVSS. The public bundle does not provide vulnerable input details, proof of exploitation, or a full vendor remediation note beyond the fixed version implied by the advisory title.
Mitigation direction
- Upgrade Visual Composer Website Builder to version 45.15.0 or later.
- Check Visual Composer and Patchstack guidance for any additional vendor-specific instructions.
- Limit content-editing permissions to trusted accounts until the plugin is updated.
- Review suspicious recently modified content after patching.
Validation and detection
- Inventory WordPress sites using the visualcomposer plugin.
- Confirm installed Visual Composer Website Builder versions are 45.15.0 or later.
- Identify roles or accounts with permission to create or edit affected content.
- Review security tooling for stored XSS alerts tied to this plugin.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-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.
Open ATT&CK lookupCVE-2025-55709 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
CNA and ADP enrichment extracted from CVE v5
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L2.33.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
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.