Blackboard Collaborate Ultra 20.02 is affected by a cross-site scripting (XSS) vulnerability
Published Mar 2, 2021
6.1
MEDIUMCVSS 3.1
EPSS 0.69%
Description
Blackboard Collaborate Ultra 20.02 is affected by a cross-site scripting (XSS) vulnerability. The XSS payload will execute on the class room, which leads to stealing cookies from users who join the class. NOTE: Third-parties dispute the validity of this entry as a possible false positive during research
Affected products
No data.
- 20.02
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/A:N
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 3, 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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.69% (0.00689) | 51.10th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.66% (0.00665) | 50.34th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.08% (0.00084) | 36.49th | v3 (v2023.03.01) |
| Nov 16, 2023 | 0.08% (0.00084) | 35.38th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00078) | 31.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Mar 31, 2022 | 2.56% (0.02561) | 62.63th | v2 (v2022.01.01) |
| Jan 6, 2022 | 2.74% (0.02742) | 62.72th | v1 |
| Jan 5, 2022 | 0.62% (0.00624) | 46.35th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- https://github.com/Lawyer-1/Turki/blob/main/CVE-2020-25902.md x_refsource_MISCBroken Link
- https://www.blackboard.com/teaching-learning/collaboration-web-conferencing/blackboard-collaborate x_refsource_MISCProductVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/Lawyer-1/Turki/blob/main/CVE-2020-25902.md | x_refsource_MISCBroken Link | |
| https://www.blackboard.com/teaching-learning/collaboration-web-conferencing/blackboard-collaborate | x_refsource_MISCProductVendor Advisory |
Change history (0)
No recorded changes yet.