CVE-2021-42650
MEDIUMCVSS 6.1/10EPSS 0.61%
Last modified
CVE-2021-42650 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Cross Site Scripting (XSS vulnerability exists in Portainer before 2.9.1 via the node input box in Custom Templates.. EPSS estimates a 0.61% chance of exploitation in the next 30 days.
Description
Cross Site Scripting (XSS vulnerability exists in Portainer before 2.9.1 via the node input box in Custom Templates.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Portainer | Portainer | < 2.9.1 |
References
- https://github.com/portainer/portainer/pull/5766Patch, Third Party Advisory
- https://github.com/portainer/portainer/pull/5766Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-42650?
Cross Site Scripting (XSS vulnerability exists in Portainer before 2.9.1 via the node input box in Custom Templates.
How severe is CVE-2021-42650?
CVE-2021-42650 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.
How do I fix CVE-2021-42650?
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-2021-42643cmseasy V7.7.5_20211012 is affected by an arbitrary file wri…8.8
- CVE-2021-42644cmseasy V7.7.5_20211012 is affected by an arbitrary file rea…6.5
- CVE-2021-42645CMSimple_XH 1.7.4 is affected by a remote code execution (RC…10
- CVE-2021-42646XML External Entity (XXE) vulnerability in the file based se…9.1
- CVE-2021-42648Cross-site scripting (XSS) vulnerability exists in Coder Cod…6.1
- CVE-2021-4265A vulnerability was found in siwapp-ror. It has been rated a…6.1
- CVE-2021-42651A Server Side Template Injection (SSTI) vulnerability in Pen…8.8
- CVE-2021-42654SiteServer CMS < V5.1 is affected by an unrestricted upload …9.8
- CVE-2021-42655SiteServer CMS V6.15.51 is affected by a SQL injection vulne…8.8
- CVE-2021-42656SiteServer CMS V6.15.51 is affected by a Cross Site Scriptin…5.4
- CVE-2021-42659There is a buffer overflow vulnerability in the Web server h…6.5
- CVE-2021-4266A vulnerability classified as problematic has been found in …6.1
Are you affected by CVE-2021-42650?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST