CVE-2021-20112
Last modified
CVE-2021-20112 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A stored cross-site scripting vulnerability exists in TCExam <= 14.8.1. Valid files uploaded via tce_select_mediafile.php with a filename beggining with a period will be rendered as text/html. EPSS estimates a 0.63% chance of exploitation in the next 30 days.
Description
A stored cross-site scripting vulnerability exists in TCExam <= 14.8.1. Valid files uploaded via tce_select_mediafile.php with a filename beggining with a period will be rendered as text/html. An attacker with access to tce_select_mediafile.php could upload a malicious javascript payload which would be triggered when another user views the file.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Tecnick | Tcexam | <= 14.8.1 |
References
- https://www.tenable.com/security/research/tra-2021-32Exploit, Third Party Advisory
- https://www.tenable.com/security/research/tra-2021-32Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-20112?
How severe is CVE-2021-20112?
How do I fix CVE-2021-20112?
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-2021-20107There exists an unauthenticated BLE Interface in Sloan Smart…5.4
- CVE-2021-20108Manage Engine Asset Explorer Agent 1.0.34 listens on port 90…7.5
- CVE-2021-20109Due to the Asset Explorer agent not validating HTTPS certifi…7.5
- CVE-2021-2011Vulnerability in the MySQL Client product of Oracle MySQL (c…5.9
- CVE-2021-20110Due to Manage Engine Asset Explorer Agent 1.0.34 not validat…9.8
- CVE-2021-20111A stored cross-site scripting vulnerability exists in TCExam…5.4
- CVE-2021-20113An exposure of sensitive information vulnerability exists in…5.3
- CVE-2021-20114When installed following the default/recommended settings, T…7.5
- CVE-2021-20115A reflected cross-site scripting vulnerability exists in TCE…6.1
- CVE-2021-20116A reflected cross-site scripting vulnerability exists in TCE…6.1
- CVE-2021-20117Nessus Agent 8.3.0 and earlier was found to contain a local …6.7
- CVE-2021-20118Nessus Agent 8.3.0 and earlier was found to contain a local …6.7
Are you affected by CVE-2021-20112?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST