The `specializedRendering` function in Rocket.Chat server before 3.9.2 allows a cross-site scripting (XSS) vulnerability by way of the `value` parameter
Published Jan 21, 2021
5.4
MEDIUMCVSS 3.1
EPSS 0.85%
Description
The `specializedRendering` function in Rocket.Chat server before 3.9.2 allows a cross-site scripting (XSS) vulnerability by way of the `value` parameter.
Affected products
- Vendor n/a Product Rocket.Chat server Defaultn/a
- Version Fixed in 3.9.2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Rocket.Chat server | n/a |
|
- < 3.9.2
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:L/UI:R/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:S/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 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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.85% (0.00848) | 56.58th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.85% (0.00848) | 56.54th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.07% (0.00067) | 29.85th | v3 (v2023.03.01) |
| Jun 12, 2024 | 0.07% (0.00067) | 29.33th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00067) | 27.31th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00890) | 30.33th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00890) | 26.62th | v2 (v2022.01.01) |
| Mar 31, 2022 | 3.07% (0.03070) | 65.52th | v2 (v2022.01.01) |
| Jan 6, 2022 | 3.63% (0.03630) | 71.48th | v1 |
| Jan 5, 2022 | 0.83% (0.00833) | 58.90th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (3)
- https://docs.rocket.chat/guides/security/security-updates x_refsource_MISCVendor Advisory
- https://hackerone.com/reports/899954 x_refsource_MISCExploitThird Party Advisory
- https://rocket.chat/xss-vulnerability-hotfix-available-for-all-affected-versions/ x_refsource_MISCPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://docs.rocket.chat/guides/security/security-updates | x_refsource_MISCVendor Advisory | |
| https://hackerone.com/reports/899954 | x_refsource_MISCExploitThird Party Advisory | |
| https://rocket.chat/xss-vulnerability-hotfix-available-for-all-affected-versions/ | x_refsource_MISCPatchVendor Advisory |
Change history (0)
No recorded changes yet.