Security readout for executives and security teams
Plain-English summary
A vulnerable WordPress plugin can be abused through CSRF to store malicious script content, creating stored XSS risk. This can affect site integrity and users who later view the stored content. The sources do not identify active exploitation or a confirmed fixed version.
Executive priority
Treat this as a high-priority WordPress plugin exposure, especially on public or business-critical sites. It is not confirmed as exploited in the supplied sources, but stored XSS can affect customer trust, site integrity, and session security.
Technical view
CVE-2025-39547 affects Toast Plugins Internal Link Optimiser, package internal-link-finder, through version 5.1.3. It is classified as CWE-352 CSRF leading to stored XSS, with CVSS 3.1 score 7.1 and vector AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.
Likely exposure
Exposure is limited to WordPress sites running Internal Link Optimiser/internal-link-finder version 5.1.3 or earlier. Sites not using this plugin are not indicated as affected by the supplied sources.
Exploitation context
The record is not in KEV, and the supplied sources do not state active exploitation. The CVSS vector indicates network reachability, low attack complexity, no attacker privileges, and required user interaction. Exact affected workflows and required victim role are not provided.
Researcher notes
Evidence is limited to CVE and Patchstack metadata. The advisory names CSRF to stored XSS but does not provide exploit details, affected endpoints, a fixed version, or operational mitigations in the supplied bundle.
Mitigation direction
- Inventory WordPress sites for Internal Link Optimiser/internal-link-finder installations.
- Check the vendor and Patchstack advisory for a fixed version or official mitigation.
- Disable or remove the plugin if no acceptable vendor guidance is available.
- Prioritize administrative WordPress sites and high-traffic public sites first.
Validation and detection
- Confirm installed plugin name, package identifier, and version on each WordPress site.
- Flag any Internal Link Optimiser version 5.1.3 or earlier for remediation.
- Review site content and plugin-managed fields for unexpected stored script content.
- Check WordPress security logs for suspicious administrative actions or CSRF-like activity.
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 lookupCVE-2025-39547 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
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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.
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:L/I:L/A:L2.83.7PatchstackVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
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/internal-link-finder/vulnerability/wordpress-internal-link-optimiser-plugin-5-1-3-csrf-to-xss-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.