01 Record
CVE-2017-0881
An error in the implementation of an autosubscribe feature in the check_stream_exists route of the Zulip group chat application server before 1.4.3 allowed an authenticated user to subscribe to a
UnratedPUBLISHEDCNA: hackerone
CNA base scoreUnratedNo CNA CVSS vector
02 Description
An error in the implementation of an autosubscribe feature in the check_stream_exists route of the Zulip group chat application server before 1.4.3 allowed an authenticated user to subscribe to a
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
- 1.10% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 65.4% of scored records. A rank, not a probability.
- NVD base score
- 4.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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
- 2017-03-28 02:46Z9 YR AGO
- Last updated
- 2024-08-05 13:18Z2 YR AGO
- Reserved
- 2016-11-30
- Assigning CNA
- hackerone
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- dc7a6b600a35e3e5ea0cefe8c056932cd15bbb95a90770d6a75b52b34dfdca0a
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.securityfocus.com97159http://www.securityfocus.com/bid/97159
- groups.google.comhttps://groups.google.com/d/msg/zulip-announce/VyawgRuoY34/NTBwnTArGwAJ
- github.comhttps://github.com/zulip/zulip/commit/7ecda1ac8e26d8fb3725e954b2dc4723dda2255f