Security readout for executives and security teams
Plain-English summary
CVE-2025-23888 is a reflected cross-site scripting issue in the WordPress Custom Page Extensions plugin through version 0.6. An attacker may be able to trick a user into opening a crafted link that runs script in the site context. Business impact is mainly account compromise, content tampering, or session exposure if privileged users are targeted.
Executive priority
Treat as high priority for public WordPress sites using this plugin, especially where administrators browse while logged in. First establish whether the plugin is present; then patch, disable, or replace according to vendor guidance.
Technical view
The CVE describes CWE-79 improper input neutralization during web page generation in GrandSlambert Custom Page Extensions. CVSS 3.1 is 7.1: network reachable, low complexity, no privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact. The bundle does not identify vulnerable endpoints, exploit details, or a fixed version.
Likely exposure
Exposure is limited to WordPress sites running the GrandSlambert Custom Page Extensions plugin at version 0.6 or earlier. The source bundle does not provide CPEs, endpoint details, or evidence that the plugin is widely deployed.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Because this is reflected XSS, successful abuse requires user interaction, typically convincing a victim to open attacker-controlled content. No exploit procedure is provided in the cited sources.
Researcher notes
Use caution: the provided sources establish the vulnerability class, affected version range, CVSS vector, and Patchstack reference, but not a fixed release, vulnerable parameter, proof of concept, or exploitation telemetry. Do not infer affected forks or other plugins.
Mitigation direction
- Inventory WordPress sites for plugin slug custom-page-extensions.
- Confirm whether installed versions are 0.6 or earlier.
- Check Patchstack and vendor guidance for fixed versions or official mitigation.
- Update if a vendor-supported fixed release exists.
- If no fix exists, evaluate disabling or replacing the plugin.
- Prioritize sites used by administrators or authenticated staff.
Validation and detection
- Review WordPress plugin inventories for GrandSlambert Custom Page Extensions.
- Record installed version numbers and compare against <= 0.6.
- Check whether the plugin is active on public-facing sites.
- Review security tooling for CVE-2025-23888 detections.
- Monitor logs for suspicious requests to plugin-related pages.
- Document any sites where vendor remediation is unavailable.
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-2025-23888 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
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.