01 Record
CVE-2021-30487
In the topic moving API in Zulip Server 3.x before 3.4, organization administrators were able to move messages to streams in other organizations hosted by the same Zulip installation.
UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
02 Description
In the topic moving API in Zulip Server 3.x before 3.4, organization administrators were able to move messages to streams in other organizations hosted by the same Zulip installation.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.65% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 50.6% of scored records. A rank, not a probability.
- NVD base score
- 2.7 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-04-14 23:43Z5 YR AGO
- Last updated
- 2024-08-03 22:32Z2 YR AGO
- Reserved
- 2021-04-10
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- 8a986f7e4279f3e360ae43a6b61e25e819bec838ce71bdf1ca91aee52775b578
05 Affected products
VendorProductVersionsPlatforms
06 References
- blog.zulip.comhttps://blog.zulip.com/2021/04/14/zulip-server-3-4/