MEDIUM
In MyBB before 1.8.11, the Email MyCode component allows XSS, as demonstrated by an onmouseover event
Published Apr 24, 2017
6.1
MEDIUMCVSS 3.0
EPSS 0.71%
Description
In MyBB before 1.8.11, the Email MyCode component allows XSS, as demonstrated by an onmouseover event.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
6.1 MEDIUM NVD
CVSS:3.0/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
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.71% 0.00713
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00713
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.71% (0.00713) | 51.92th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.71% (0.00713) | 52.18th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.08% (0.00084) | 36.35th | v3 (v2023.03.01) |
| May 10, 2024 | 0.08% (0.00084) | 35.43th | v3 (v2023.03.01) |
| Mar 21, 2024 | 0.08% (0.00081) | 33.42th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00078) | 31.42th | 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 |
Weaknesses (1)
References (2)
- http://seclists.org/fulldisclosure/2017/Apr/53 x_refsource_MISCThird Party AdvisoryVDB Entry
- https://blog.mybb.com/2017/04/04/mybb-1-8-11-merge-system-1-8-11-release/ x_refsource_MISCPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/fulldisclosure/2017/Apr/53 | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| https://blog.mybb.com/2017/04/04/mybb-1-8-11-merge-system-1-8-11-release/ | x_refsource_MISCPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 24, 2017
Updated Sep 16, 2024
Reserved Apr 24, 2017
Link CVE-2017-8103
CISA Vulnrichment
Updated n/a