CPO Companion < 1.1.0 - Contributor+ Stored XSS via Shortcode
Priority LOW 25CWE-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 · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
The CPO Companion WordPress plugin before 1.1.0 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 None reported CISA SSVC · not in CISA KEV
EPSS 0.00534 45th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed CPO Companion (Unknown): 1.1.0
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 |
|---|---|---|---|---|---|
| Unknown | CPO Companion | before 1.1.0 | 1.1.0 | Patch available | CNA |
- CPO Companion VendorUnknown Affected before 1.1.0 Fixed in 1.1.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:machothemes:cpo_companion:*:*:*:*:*:wordpress:*:* | before 1.1.0 | Vulnerable | Macho Themes |
- cpe:2.3:a:machothemes:cpo_companion:*:*:*:*:*:wordpress:*:* Versions before 1.1.0 Vulnerable ·Macho Themes
Remediation
- Fix · CNA CPO Companion (Unknown) Fixed in 1.1.0
Timeline
- 2026-10-02 Threatist record created from CVE-2022-4837
- 2026-10-03 Alias added: GHSA-37v2-887x-rc5j
References
More Macho Themes Cpo Companion vulnerabilities
- TI-2023-00156 CPO Companion <= 1.0.4 - Authenticated (Administrator+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 5.5
Sources
- CVE-2022-4837 · CVE Program
- CVE-2022-4837 · NVD
- FIRST EPSS
- GHSA-37v2-887x-rc5j · 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