MEDIUM
Contao 3.x before 3.5.32 allows XSS via the unsubscribe module in the frontend newsletter extension
Published Sep 21, 2023
6.1
MEDIUMCVSS 3.1
EPSS 0.41%
Description
Contao 3.x before 3.5.32 allows XSS via the unsubscribe module in the frontend newsletter extension.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
6.1 MEDIUM NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Impact Low
Integrity Impact Low
Availability Impact None
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
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Sep 24, 2024 · SSVC 2.0.3
0.41% 0.00415
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00415
Score over time
2023–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (7 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.41% (0.00415) | 33.40th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.41% (0.00411) | 32.53th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00076) | 20.38th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00054) | 23.58th | v3 (v2023.03.01) |
| May 17, 2024 | 0.05% (0.00046) | 16.26th | v3 (v2023.03.01) |
| Sep 23, 2023 | 0.05% (0.00046) | 14.20th | v3 (v2023.03.01) |
| Sep 22, 2023 | 0.04% (0.00043) | 7.20th | v3 (v2023.03.01) |
Weaknesses (1)
References (6)
- https://contao.org/en/news/contao-3_5_32.html
- https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/core/CVE-2018-5478.yaml Third Party Advisory
- https://github.com/advisories/GHSA-mpg7-2rx9-h5qp Advisory
- https://github.com/contao/core/commit/3123d6527ae6c46087b0ad8061eb8651cb645b8d
- https://nvd.nist.gov/vuln/detail/CVE-2018-5478
- https://security.snyk.io/vuln/SNYK-PHP-CONTAOCORE-70397 Third Party Advisory
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 21, 2023
Updated Sep 24, 2024
Reserved Jan 12, 2018
Link CVE-2018-5478
CISA Vulnrichment
GHSA-MPG7-2RX9-H5QP Updated Sep 24, 2024