CVE-2021-33509
CRITICALCVSS 9.9/10EPSS 2.04%
Last modified
CVE-2021-33509 is a critical-severity vulnerability rated 9.9/10 on the CVSS scale. Plone through 5.2.4 allows remote authenticated managers to perform disk I/O via crafted keyword arguments to the ReStructuredText transform in a Python script.. EPSS estimates a 2.04% chance of exploitation in the next 30 days.
Description
Plone through 5.2.4 allows remote authenticated managers to perform disk I/O via crafted keyword arguments to the ReStructuredText transform in a Python script.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Plone | Plone | <= 5.2.4 |
References
- http://www.openwall.com/lists/oss-security/2021/05/22/1Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/22/1Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-33509?
Plone through 5.2.4 allows remote authenticated managers to perform disk I/O via crafted keyword arguments to the ReStructuredText transform in a Python script.
How severe is CVE-2021-33509?
CVE-2021-33509 has a CVSS score of 9.9/10 (CRITICAL severity). The EPSS model estimates a 2.04% probability of exploitation in the next 30 days.
How do I fix CVE-2021-33509?
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-2021-33509?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST