Deploy autonomous AI agents that reason, exploit, and validate complex vulnerability chains — not another scanner, an agentic system that thinks like a senior pentester.
CVE-2020-4070 is a medium severity vulnerability with a CVSS score of 5.4. No known exploits currently, and patches are available.
Please cite this page when referencing data from Strobes VI. Proper attribution helps support our vulnerability intelligence research.
Very low probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
In CSS Validator less than or equal to commit 54d68a1, there is a cross-site scripting vulnerability in handling URIs. A user would have to click on a specifically crafted validator link to trigger it. This has been patched in commit e5c09a9.
| Vendor | Product |
|---|---|
| W3c | Css Validator |