Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support is disabled, might allow remote attackers to hijack web sessions and consequently gain privileges via a crafted email
Published Dec 20, 2017
8.8
HIGHCVSS 3.0
EPSS 2.22%
Description
Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support is disabled, might allow remote attackers to hijack web sessions and consequently gain privileges via a crafted email.
Affected products
No data.
Configuration 1
Configuration 2
- 7.0
- 8.0
- 9.0
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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:M/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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.22% (0.02223) | 82.08th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.22% (0.02223) | 80.33th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.94% (0.00938) | 74.63th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.87% (0.00870) | 83.10th | v3 (v2023.03.01) |
| May 8, 2024 | 0.87% (0.00870) | 82.31th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.87% (0.00870) | 80.30th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.80% (0.01799) | 86.20th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.93% (0.01935) | 48.26th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.93% (0.01935) | 0.00th | v1 |
References (6)
- https://github.com/OTRS/otrs/commit/26707eaaa791648e6c7ad6aeaa27efd70e7c66eb x_refsource_CONFIRMPatchThird Party Advisory
- https://github.com/OTRS/otrs/commit/36e3be99cfe8a9e09afa1b75fdc39f3e28f561fc x_refsource_CONFIRMPatchThird Party Advisory
- https://github.com/OTRS/otrs/commit/720c73fbf53e476ca7dfdf2ae1d4d3d2aad2b953 x_refsource_CONFIRMPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2017/12/msg00018.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://www.debian.org/security/2017/dsa-4069 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.otrs.com/security-advisory-2017-10-security-update-otrs-framework/ x_refsource_CONFIRMPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/OTRS/otrs/commit/26707eaaa791648e6c7ad6aeaa27efd70e7c66eb | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://github.com/OTRS/otrs/commit/36e3be99cfe8a9e09afa1b75fdc39f3e28f561fc | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://github.com/OTRS/otrs/commit/720c73fbf53e476ca7dfdf2ae1d4d3d2aad2b953 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2017/12/msg00018.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://www.debian.org/security/2017/dsa-4069 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://www.otrs.com/security-advisory-2017-10-security-update-otrs-framework/ | x_refsource_CONFIRMPatchVendor Advisory |
Change history (0)
No recorded changes yet.