Materialis Companion < 1.3.40 - Contributor+ Stored XSS via Shortcode
Priority MEDIUM 58Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
The Materialis Companion WordPress plugin before 1.3.40 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00605 49th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed Materialis Companion (Unknown): 1.3.40
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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 |
|---|---|---|---|---|---|
| Unknown | Materialis Companion | before 1.3.40 | 1.3.40 | Patch available | CNA |
- Materialis Companion VendorUnknown Affected before 1.3.40 Fixed in 1.3.40 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:extendthemes:materialis_companion:*:*:*:*:*:wordpress:*:* | before 1.3.40 | Vulnerable | extendthemes |
- cpe:2.3:a:extendthemes:materialis_companion:*:*:*:*:*:wordpress:*:* Versions before 1.3.40 Vulnerable ·extendthemes
Remediation
- Fix · CNA Materialis Companion (Unknown) Fixed in 1.3.40
Timeline
- 2026-10-02 Threatist record created from CVE-2022-4762
- 2026-10-03 Alias added: GHSA-gmwv-39gf-9x6h
References
More extendthemes Materialis Companion vulnerabilities
- TI-2024-04380 Cross-site scripting in horearadu Materialis Companion CVSS 3.1MEDIUM 6.4
Sources
- CVE-2022-4762 · CVE Program
- CVE-2022-4762 · NVD
- FIRST EPSS
- GHSA-gmwv-39gf-9x6h · 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