An issue was discovered in Zammad before 1.0.4, 1.1.x before 1.1.3, and 1.2.x before 1.2.1, caused by lack of a protection mechanism involving HTTP Access-Control headers
Published Mar 13, 2017
9.8
CRITICALCVSS 3.0
EPSS 0.73%
Description
An issue was discovered in Zammad before 1.0.4, 1.1.x before 1.1.3, and 1.2.x before 1.2.1, caused by lack of a protection mechanism involving HTTP Access-Control headers. To exploit the vulnerability, an attacker can send cross-domain requests directly to the REST API for users with a valid session cookie and receive the result.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.73% (0.00727) | 52.45th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.73% (0.00727) | 52.68th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.08% (0.00084) | 36.50th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.08% (0.00084) | 36.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00084) | 34.23th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- http://www.securityfocus.com/bid/96937 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://zammad.com/de/news/security-advisory-zaa-2017-01 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/96937 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://zammad.com/de/news/security-advisory-zaa-2017-01 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.