Cross-site scripting vulnerability in Zulip Server
Published Mar 2, 2022
5.4
MEDIUMCVSS 3.1
EPSS 0.58%
Description
Zulip is an open source team chat app. The `main` development branch of Zulip Server from June 2021 and later is vulnerable to a cross-site scripting vulnerability on the recent topics page. An attacker could maliciously craft a full name for their account and send messages to a topic with several participants; a victim who then opens an overflow tooltip including this full name on the recent topics page could trigger execution of JavaScript code controlled by the attacker. Users running a Zulip server from the main branch should upgrade from main (2022-03-01 or later) again to deploy this fix.
Affected products
-
- Version >= 2021-06-03, < 2022-03-01StatusaffectedConstraints-
- Version
- ≥ 2021-06-03 · < 2022-03-01
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
1 other source (GitHub) ▾
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/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.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Apr 23, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.58% (0.00584) | 46.04th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.55% (0.00549) | 41.39th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.27% (0.00266) | 48.08th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00050) | 21.41th | v3 (v2023.03.01) |
| May 23, 2024 | 0.05% (0.00050) | 19.03th | v3 (v2023.03.01) |
| Sep 23, 2023 | 0.05% (0.00050) | 17.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00053) | 19.05th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.44% (0.01440) | 73.47th | v2 (v2022.01.01) |
| Feb 28, 2023 | 1.44% (0.01440) | 73.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.44% (0.01440) | 71.44th | v2 (v2022.01.01) |
| Mar 10, 2022 | 1.44% (0.01440) | 51.17th | v2 (v2022.01.01) |
| Mar 3, 2022 | 2.48% (0.02485) | 59.08th | v2 (v2022.01.01) |
References (2)
- https://github.com/zulip/zulip/commit/e090027adcbf62737d5b1f83a9618a9500a49321 x_refsource_MISCPatchThird Party Advisory
- https://github.com/zulip/zulip/security/advisories/GHSA-fc77-h3jc-6mfv x_refsource_CONFIRMThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/zulip/zulip/commit/e090027adcbf62737d5b1f83a9618a9500a49321 | x_refsource_MISCPatchThird Party Advisory | |
| https://github.com/zulip/zulip/security/advisories/GHSA-fc77-h3jc-6mfv | x_refsource_CONFIRMThird Party Advisory |
Change history (0)
No recorded changes yet.