Klaviyo <= 3.0.10 - Admin+ Stored XSS
Published Apr 10, 2023
4.8
MEDIUMCVSS 3.1
EPSS 0.44%
Description
The Klaviyo WordPress plugin before 3.0.10 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).
Affected products
- Vendor n/a Product Klaviyo Defaultunaffected
- Version 0StatusaffectedConstraints<3.0.10
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Klaviyo | unaffected |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Feb 11, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2023–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.44% (0.00442) | 36.23th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.44% (0.00442) | 35.02th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00077) | 20.59th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00059) | 26.83th | v3 (v2023.03.01) |
| Apr 16, 2024 | 0.06% (0.00056) | 22.09th | v3 (v2023.03.01) |
| Mar 10, 2024 | 0.05% (0.00053) | 18.64th | v3 (v2023.03.01) |
| Apr 14, 2023 | 0.04% (0.00045) | 11.89th | v3 (v2023.03.01) |
| Apr 11, 2023 | 0.04% (0.00043) | 7.03th | v3 (v2023.03.01) |
No CWE recorded.
References (1)
- https://wpscan.com/vulnerability/495e39db-793d-454b-9ef1-dd91cae2c49b exploitvdb-entrytechnical-descriptionThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://wpscan.com/vulnerability/495e39db-793d-454b-9ef1-dd91cae2c49b | exploitvdb-entrytechnical-descriptionThird Party Advisory |
Change history (0)
No recorded changes yet.