CVE-2021-27904
MEDIUMCVSS 5.5/10EPSS 0.26%
Last modified
CVE-2021-27904 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An issue was discovered in app/Model/SharingGroupServer.php in MISP 2.4.139. In the implementation of Sharing Groups, the "all org" flag sometimes provided view access to unintended actors.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.
Description
An issue was discovered in app/Model/SharingGroupServer.php in MISP 2.4.139. In the implementation of Sharing Groups, the "all org" flag sometimes provided view access to unintended actors.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Misp-Project | Misp | <= 2.4.139 |
References
- https://github.com/MISP/MISP/commit/ca13fee271ad126832c88896776f3050a6c06e64Patch, Third Party Advisory
- https://github.com/MISP/MISP/commit/ca13fee271ad126832c88896776f3050a6c06e64Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-27904?
An issue was discovered in app/Model/SharingGroupServer.php in MISP 2.4.139. In the implementation of Sharing Groups, the "all org" flag sometimes provided view access to unintended actors.
How severe is CVE-2021-27904?
CVE-2021-27904 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27904?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-27893SSH Tectia Client and Server before 6.4.19 on Windows allow …7
- CVE-2021-27899The Proofpoint Insider Threat Management Agents (formerly Ob…7.4
- CVE-2021-27900The Proofpoint Insider Threat Management Server (formerly Ob…8.1
- CVE-2021-27901An issue was discovered on LG mobile devices with Android OS…6.8
- CVE-2021-27902An issue was discovered in Craft CMS before 3.6.0. In some c…6.1
- CVE-2021-27903An issue was discovered in Craft CMS before 3.6.7. In some c…9.8
- CVE-2021-27905The ReplicationHandler (normally registered at "/replication…9.8
- CVE-2021-27906A carefully crafted PDF file can trigger an OutOfMemory-Exce…5.5
- CVE-2021-27907Apache Superset up to and including 0.38.0 allowed the creat…5.4
- CVE-2021-27908In all versions prior to Mautic 3.3.2, secret parameters suc…4.4
- CVE-2021-27909For Mautic versions prior to 3.3.4/4.0.0, there is an XSS vu…6.1
- CVE-2021-27910Insufficient sanitization / filtering allows for arbitrary J…6.1
Are you affected by CVE-2021-27904?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST