Security readout for executives and security teams
Plain-English summary
CVE-2025-23791 is a stored cross-site scripting issue in the WordPress Horizontal Line Shortcode plugin up to version 1.0. An authenticated user could store script content that later runs in another user’s browser. Business impact depends on whether the plugin is installed and who can create or edit affected content.
Executive priority
Treat as moderate priority. It is not confirmed exploited in the supplied evidence, but stored XSS can affect user trust, admin sessions, and site integrity if vulnerable WordPress sites allow untrusted content edits.
Technical view
The source describes CWE-79 improper neutralization during web page generation in mikakaltoft Horizontal Line Shortcode. CVSS 3.1 is 6.5 with network access, low complexity, low privileges required, user interaction required, and changed scope. The bundle does not provide exploit details or confirmed patched versions.
Likely exposure
Likely exposed assets are WordPress sites running horizontal-line-shortcode through version 1.0. Sites without this plugin are not indicated as affected by the supplied sources.
Exploitation context
The CVE is not listed as KEV, and the supplied sources do not state active exploitation. The CVSS vector suggests exploitation needs a low-privileged authenticated user and a victim interaction path where stored content is viewed.
Researcher notes
Evidence is limited to the CVE record and Patchstack database reference. No exploit status, payload details, affected shortcode field, or fixed version is included in the supplied bundle, so validation should focus on asset presence, versioning, and vendor guidance.
Mitigation direction
- Inventory WordPress sites for the Horizontal Line Shortcode plugin and version.
- Check vendor, WordPress plugin, or Patchstack guidance for a fixed release.
- If no fix is available, disable or remove the plugin where feasible.
- Limit content-editing privileges to trusted users until remediation is confirmed.
- Review pages or posts using the shortcode for suspicious stored content.
Validation and detection
- Confirm plugin presence and version on each WordPress instance.
- Verify whether installed versions are less than or equal to 1.0.
- Check logs and content history for unexpected edits by low-privileged users.
- Validate remediation by confirming the plugin is updated, disabled, or removed.
- Record compensating controls where the plugin must remain enabled.
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-2025-23791 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.
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:L/UI:R/S:C/C:L/I:L/A:L2.33.7PatchstackVulnerability 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
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
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.