Security readout for executives and security teams
Plain-English summary
This CVE affects a WordPress plugin that can modify site code. A CSRF flaw could let an attacker trick an authenticated user into causing remote code inclusion. The rating is critical because successful abuse could compromise the website. The provided sources do not show CISA KEV listing or confirmed active exploitation.
Executive priority
Treat this as urgent for any WordPress property using the plugin. Prioritize inventory first, then remediation based on vendor guidance. The business risk is full site compromise if the vulnerable path is successfully abused.
Technical view
CVE-2025-39601 is CWE-352 in WPFactory Custom CSS, JS & PHP through version 2.4.1. The CVE description states CSRF can lead to remote code inclusion. CVSS 3.1 is 9.6 with network attack vector, low complexity, no attacker privileges, required user interaction, changed scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to WordPress sites running WPFactory Custom CSS, JS & PHP custom-css at version 2.4.1 or earlier. Sites without this plugin are not indicated as affected by the supplied sources.
Exploitation context
The source bundle supports a CSRF-to-remote-code-inclusion risk, requiring user interaction. It does not provide exploit details, public exploit evidence, or active exploitation confirmation. The CVE is not marked as CISA KEV in the bundle.
Researcher notes
Evidence is narrow: the bundle names CSRF leading to remote code inclusion, affected versions through 2.4.1, CVSS 9.6, and Patchstack as the advisory source. It does not include proof-of-concept details, exploitation telemetry, or a named fixed release.
Mitigation direction
- Inventory WordPress sites for the Custom CSS, JS & PHP plugin.
- Flag installations running version 2.4.1 or earlier.
- Check WPFactory and Patchstack guidance for a fixed version or official mitigation.
- If no supported fix is available, consider disabling or removing the plugin.
- Restrict administrative sessions and reinforce CSRF-aware admin workflows.
Validation and detection
- Check WordPress plugin inventory for custom-css or Custom CSS, JS & PHP.
- Record installed versions and flag version 2.4.1 or earlier.
- Confirm whether exposed sites allow authenticated plugin administration.
- Review admin activity for unexpected code, CSS, JS, or PHP changes.
- Monitor vendor and Patchstack advisories for updated remediation details.
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-352: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2025-39601 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
- Critical
- CVSS
- 9.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
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.
SSVC decision data
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:N/UI:R/S:C/C:H/I:H/A:H2.86PatchstackVulnerability scoring details
Base CVSS 3.1 score
9.6CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://patchstack.com/database/Wordpress/Plugin/custom-css/vulnerability/wordpress-custom-css-js-php-plugin-2-4-1-csrf-to-rce-vulnerability?_s_id=cveCVE reference, Patchstack · vdb-entry
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.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.