CRITICAL
osTicket 1.10.1 provides a functionality to upload 'html' files with associated formats
Published Oct 23, 2017
9.8
CRITICALCVSS 3.0
EPSS 15.56%
Description
osTicket 1.10.1 provides a functionality to upload 'html' files with associated formats. However, it does not properly validate the uploaded file's contents and thus accepts any type of file, such as with a tickets.php request that is modified with a .html extension changed to a .exe extension. An attacker can leverage this vulnerability to upload arbitrary files on the web application having malicious content.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
15.56% 0.15564
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.15564
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (28 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 15.56% (0.15564) | 96.73th | v5 (v2026.06.15) |
| Sep 22, 2026 | 15.56% (0.15564) | 96.68th | v5 (v2026.06.15) |
| Sep 21, 2026 | 12.25% (0.12248) | 96.05th | v5 (v2026.06.15) |
| Sep 6, 2026 | 15.56% (0.15564) | 96.60th | v5 (v2026.06.15) |
| Sep 5, 2026 | 12.25% (0.12248) | 95.97th | v5 (v2026.06.15) |
| Aug 30, 2026 | 15.56% (0.15564) | 96.58th | v5 (v2026.06.15) |
| Aug 28, 2026 | 12.25% (0.12248) | 95.94th | v5 (v2026.06.15) |
| Aug 24, 2026 | 15.56% (0.15564) | 96.56th | v5 (v2026.06.15) |
| Aug 23, 2026 | 12.25% (0.12248) | 95.93th | v5 (v2026.06.15) |
| Jun 15, 2026 | 15.98% (0.15977) | 96.48th | v5 (v2026.06.15) |
| Dec 22, 2025 | 35.84% (0.35840) | 96.92th | v4 (v2025.03.14) |
| May 9, 2025 | 38.44% (0.38443) | 97.02th | v4 (v2025.03.14) |
| Mar 30, 2025 | 39.55% (0.39555) | 97.01th | v4 (v2025.03.14) |
| Mar 29, 2025 | 41.54% (0.41542) | 96.12th | v4 (v2025.03.14) |
| Mar 17, 2025 | 39.55% (0.39555) | 96.97th | v4 (v2025.03.14) |
| Dec 17, 2024 | 15.67% (0.15673) | 95.89th | v3 (v2023.03.01) |
| Jan 27, 2024 | 4.00% (0.03996) | 91.19th | v3 (v2023.03.01) |
| May 8, 2023 | 5.55% (0.05551) | 92.02th | v3 (v2023.03.01) |
| Apr 6, 2023 | 4.70% (0.04697) | 91.39th | v3 (v2023.03.01) |
| Mar 16, 2023 | 6.50% (0.06502) | 92.58th | v3 (v2023.03.01) |
| Mar 7, 2023 | 7.80% (0.07802) | 93.15th | v3 (v2023.03.01) |
| Mar 6, 2023 | 10.21% (0.10212) | 94.60th | v2 (v2022.01.01) |
| Apr 1, 2022 | 10.21% (0.10212) | 94.14th | v2 (v2022.01.01) |
| Feb 4, 2022 | 10.21% (0.10212) | 87.64th | v2 (v2022.01.01) |
| Feb 3, 2022 | 7.45% (0.07447) | 83.93th | v1 |
| Jan 6, 2022 | 7.45% (0.07447) | 83.77th | v1 |
| Sep 1, 2021 | 7.45% (0.07447) | 91.42th | v1 |
| Apr 14, 2021 | 7.45% (0.07447) | 0.00th | v1 |
Weaknesses (1)
References (7)
- http://0day.today/exploits/28864 x_refsource_MISCThird Party Advisory
- http://nakedsecurity.com/cve/CVE-2017-15580/ x_refsource_MISCThird Party Advisory
- https://becomepentester.blogspot.com/2017/10/osTicket-File-Upload-Restrictions-Bypassed-CVE-2017-15580.html x_refsource_MISCExploitThird Party Advisory
- https://cxsecurity.com/issue/WLB-2017100187 x_refsource_MISCExploitThird Party Advisory
- https://packetstormsecurity.com/files/144747/osticket1101-shell.txt x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- https://www.cyber-security.ro/blog/2017/10/25/osticket-1-10-1-shell-upload/ x_refsource_MISCBroken Link
- https://www.exploit-db.com/exploits/45169/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://0day.today/exploits/28864 | x_refsource_MISCThird Party Advisory | |
| http://nakedsecurity.com/cve/CVE-2017-15580/ | x_refsource_MISCThird Party Advisory | |
| https://becomepentester.blogspot.com/2017/10/osTicket-File-Upload-Restrictions-Bypassed-CVE-2017-15580.html | x_refsource_MISCExploitThird Party Advisory | |
| https://cxsecurity.com/issue/WLB-2017100187 | x_refsource_MISCExploitThird Party Advisory | |
| https://packetstormsecurity.com/files/144747/osticket1101-shell.txt | x_refsource_MISCExploitThird Party AdvisoryVDB Entry | |
| https://www.cyber-security.ro/blog/2017/10/25/osticket-1-10-1-shell-upload/ | x_refsource_MISCBroken Link | |
| https://www.exploit-db.com/exploits/45169/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Oct 23, 2017
Updated Aug 5, 2024
Reserved Oct 17, 2017
Link CVE-2017-15580
CISA Vulnrichment
Updated n/a