CVE-2021-36793
HIGHCVSS 7.5/10EPSS 1.01%
Last modified
CVE-2021-36793 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The routes (aka Extbase Yaml Routes) extension before 2.1.1 for TYPO3, when CsrfTokenViewHelper is used, allows Sensitive Information Disclosure because a session identifier is unsafely present in HTML output.. EPSS estimates a 1.01% chance of exploitation in the next 30 days.
Description
The routes (aka Extbase Yaml Routes) extension before 2.1.1 for TYPO3, when CsrfTokenViewHelper is used, allows Sensitive Information Disclosure because a session identifier is unsafely present in HTML output.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Routes Project | Routes | < 2.1.1 |
References
- https://typo3.org/help/security-advisories/securityVendor Advisory
- https://typo3.org/security/advisory/typo3-ext-sa-2021-008Vendor Advisory
- https://typo3.org/help/security-advisories/securityVendor Advisory
- https://typo3.org/security/advisory/typo3-ext-sa-2021-008Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-36793?
The routes (aka Extbase Yaml Routes) extension before 2.1.1 for TYPO3, when CsrfTokenViewHelper is used, allows Sensitive Information Disclosure because a session identifier is unsafely present in HTML output.
How severe is CVE-2021-36793?
CVE-2021-36793 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.01% probability of exploitation in the next 30 days.
How do I fix CVE-2021-36793?
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-2021-36793?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST