CVE-2021-27581
CRITICALCVSS 9.8/10EPSS 1.63%
Last modified
CVE-2021-27581 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The Blog module in Kentico CMS 5.5 R2 build 5.5.3996 allows SQL injection via the tagname parameter.. EPSS estimates a 1.63% chance of exploitation in the next 30 days.
Description
The Blog module in Kentico CMS 5.5 R2 build 5.5.3996 allows SQL injection via the tagname parameter.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Kentico | Kentico Cms | 5.5 | R2 |
References
- https://gist.github.com/stasinopoulos/673ae3c31d703b4d67449f4d8888c686Third Party Advisory
- https://kontent.aiProduct, Vendor Advisory
- https://www.obrela.com/kentico-cms-critical-vulnerability/Third Party Advisory
- https://gist.github.com/stasinopoulos/673ae3c31d703b4d67449f4d8888c686Third Party Advisory
- https://kontent.aiProduct, Vendor Advisory
- https://www.obrela.com/kentico-cms-critical-vulnerability/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-27581?
The Blog module in Kentico CMS 5.5 R2 build 5.5.3996 allows SQL injection via the tagname parameter.
How severe is CVE-2021-27581?
CVE-2021-27581 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.63% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27581?
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-2021-27581?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST