WordPress Custom Query Blocks plugin <= 5.5.0 - Cross Site Scripting (XSS) vulnerability
Priority LOW 28CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- 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 Ronald Huereca Custom Query Blocks post-type-archive-mapping allows DOM-Based XSS.This issue affects Custom Query Blocks: from n/a through <= 5.5.0.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00167 5th 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 |
|---|---|---|---|---|---|
| Ronald Huereca | Custom Query Blocks | up to 5.5.0 | — | No fix listed | CNA |
- Custom Query Blocks VendorRonald Huereca Affected up to 5.5.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-39575
- 2026-10-03 Alias added: GHSA-2mw3-cgxq-9prq
More Ronald Huereca vulnerabilities
- TI-2025-36065 WordPress Highlight and Share – Social Text and Image Sharing plugin <= 5.1.1 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
- TI-2025-41340 WordPress Highlight and Share plugin <= 5.2.0 - Broken Access Control vulnerability CVSS 3.1MEDIUM 4.7
- TI-2026-19878 WordPress Photo Block plugin <= 1.7.1 - Server Side Request Forgery (SSRF) vulnerability CVSS 3.1MEDIUM 4.4
- TI-2025-18420 WordPress Comment Edit Core – Simple Comment Editing Plugin <= 3.0.33 - Server Side Request Forgery (SSRF) vulnerability CVSS 3.1MEDIUM 4.4
- TI-2025-39697 WordPress Photo Block plugin <= 1.5.1 - Broken Access Control vulnerability CVSS 3.1LOW 2.7
Sources
- CVE-2026-39575 · CVE Program
- CVE-2026-39575 · NVD
- FIRST EPSS
- GHSA-2mw3-cgxq-9prq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences