VulnerabilityModified
CVE-2020-29158
An Agent with Customer permissions in a Group can bypass intended access control on internal Articles via the Ticket detail view.
MEDIUM 4.3EPSS 0.68%
Does this matter?
Lower severity and a low EPSS score (0.68%). Track it; it rarely justifies an emergency change on its own.
Description
An issue was discovered in Zammad before 3.5.1. An Agent with Customer permissions in a Group can bypass intended access control on internal Articles via the Ticket detail view.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.68% probability · 52th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Affected
- zammad/zammad
- Source
- cve@mitre.org
EPSS 0.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/zammad/zammad/commit/cf5a5e396058d4b134dd33d0a62b11c1733c98abPatch, Third Party Advisory
- https://zammad.com/en/advisories/zaa-2020-23Vendor Advisory
- https://github.com/zammad/zammad/commit/cf5a5e396058d4b134dd33d0a62b11c1733c98abPatch, Third Party Advisory
- https://zammad.com/en/advisories/zaa-2020-23Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.