WordPress Custom Page Extensions Plugin <= 0.6 - Cross Site Scripting (XSS) vulnerability
Priority LOW 31CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in GrandSlambert Custom Page Extensions custom-page-extensions allows Reflected XSS.This issue affects Custom Page Extensions: from n/a through <= 0.6.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0026 17th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| GrandSlambert | Custom Page Extensions | up to 0.6 | — | No fix listed | CNA |
- Custom Page Extensions VendorGrandSlambert Affected up to 0.6 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-23888
- 2026-10-03 Alias added: GHSA-m5hx-gg5v-rcw7
More GrandSlambert vulnerabilities
- TI-2025-16455 WordPress Featured Page Widget Plugin <= 2.2 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2023-17019 WordPress Login Configurator Plugin <= 2.1 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1HIGH 7.1
- TI-2023-25921 WordPress Better RSS Widget Plugin <= 2.8.1 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1MEDIUM 6.5
- TI-2023-17200 WordPress Login Configurator Plugin <= 2.1 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1MEDIUM 5.9
Sources
- CVE-2025-23888 · CVE Program
- CVE-2025-23888 · NVD
- FIRST EPSS
- GHSA-m5hx-gg5v-rcw7 · GitHub Advisory Database · CC BY 4.0
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