Security readout for executives and security teams
Plain-English summary
CVE-2025-54034 is a high-severity flaw in the WordPress Newsletters plugin by Tribulant Software. Sites running newsletters-lite/Newsletters through version 4.10 may allow an attacker to make PHP include unintended local files, risking data exposure, tampering, or site disruption. The provided sources do not confirm active exploitation.
Executive priority
Treat as a high-priority WordPress plugin risk where the plugin is present. Prioritize internet-facing marketing, customer, and newsletter sites because compromise could expose data or disrupt web operations.
Technical view
The issue is CWE-98: improper control of a filename used in a PHP include/require path. CVSS 3.1 is 7.5 with network attack vector, high complexity, no privileges required, user interaction required, and high confidentiality, integrity, and availability impact. Affected product evidence is Newsletters/newsletters-lite through version 4.10.
Likely exposure
Exposure is limited to WordPress sites with the Tribulant Software Newsletters plugin package newsletters-lite installed at version 4.10 or earlier. Sites without this plugin are not implicated by the provided sources.
Exploitation context
The source bundle marks KEV as false and provides no cited evidence of active exploitation. The CVSS vector indicates remote reachability, no required authentication, high attack complexity, and required user interaction.
Researcher notes
Evidence is limited to CVE and Patchstack metadata. No exploit procedure, fixed version, or vendor mitigation is included in the provided bundle. The affected range says through 4.10, while the affected object also contains an ambiguous versions value of 0.
Mitigation direction
- Identify all WordPress sites using Tribulant Newsletters/newsletters-lite.
- Check vendor or Patchstack guidance for a fixed version or mitigation.
- Prioritize removing, disabling, or upgrading affected plugin versions.
- Restrict administrative access and monitor WordPress file access anomalies.
Validation and detection
- Inventory installed WordPress plugins and confirm Newsletters/newsletters-lite version.
- Flag any instance running version 4.10 or earlier.
- Review vendor advisory details before declaring remediation complete.
- Check logs for unusual include errors or sensitive file access attempts.
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-98: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2025-54034 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/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.
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:H/PR:N/UI:R/S:U/C:H/I:H/A:H1.65.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
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 Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.