CVE-2021-26617
CRITICALCVSS 9.8/10EPSS 1.22%
Last modified
CVE-2021-26617 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. This issues due to insufficient verification of the various input values from user’s input. The vulnerability allows remote attackers to execute malicious code in Firstmall via navercheckout_add function.. EPSS estimates a 1.22% chance of exploitation in the next 30 days.
Description
This issues due to insufficient verification of the various input values from user’s input. The vulnerability allows remote attackers to execute malicious code in Firstmall via navercheckout_add function.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Firstmall | Firstmall | All versions |
References
- https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36469Third Party Advisory
- https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36469Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-26617?
This issues due to insufficient verification of the various input values from user’s input. The vulnerability allows remote attackers to execute malicious code in Firstmall via navercheckout_add function.
How severe is CVE-2021-26617?
CVE-2021-26617 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.22% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26617?
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.
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Are you affected by CVE-2021-26617?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST