WordPress Klaviyo Plugin <= 3.0.7 is vulnerable to Cross Site Scripting (XSS)
Priority LOW 27CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- 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
Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Klaviyo, Inc. Klaviyo plugin <= 3.0.7 versions.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00396 34th 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 |
|---|---|---|---|---|---|
| Klaviyo, Inc. | Klaviyo | up to 3.0.7 | — | No fix listed | CNA |
- Klaviyo VendorKlaviyo, Inc. Affected up to 3.0.7 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:klaviyo:klaviyo:*:*:*:*:*:wordpress:*:* | up to 3.0.7 | Vulnerable | Klaviyo, Inc. |
- cpe:2.3:a:klaviyo:klaviyo:*:*:*:*:*:wordpress:*:* Versions up to 3.0.7 Vulnerable ·Klaviyo, Inc.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-25456
- 2026-10-03 Alias added: GHSA-cwgw-c4cg-47q9
References
Sources
- CVE-2023-25456 · CVE Program
- CVE-2023-25456 · NVD
- FIRST EPSS
- GHSA-cwgw-c4cg-47q9 · 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