CVE-2021-43306
HIGHCVSS 7.5/10EPSS 1.33%
Last modified
CVE-2021-43306 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method. EPSS estimates a 1.33% chance of exploitation in the next 30 days.
Description
An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Jqueryvalidation | Jquery Validation | < 1.19.4 |
References
- https://research.jfrog.com/vulnerabilities/jquery-validation-redos-xray-211348/Exploit, Third Party Advisory
- https://research.jfrog.com/vulnerabilities/jquery-validation-redos-xray-211348/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-43306?
An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method
How severe is CVE-2021-43306?
CVE-2021-43306 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.33% probability of exploitation in the next 30 days.
How do I fix CVE-2021-43306?
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.
Related CVEs from 2021
- CVE-2021-43300Stack overflow in PJSUA API when calling pjsua_recorder_crea…9.8
- CVE-2021-43301Stack overflow in PJSUA API when calling pjsua_playlist_crea…9.8
- CVE-2021-43302Read out-of-bounds in PJSUA API when calling pjsua_recorder_…9.1
- CVE-2021-43303Buffer overflow in PJSUA API when calling pjsua_call_dump. A…9.8
- CVE-2021-43304Heap buffer overflow in Clickhouse's LZ4 compression codec w…8.8
- CVE-2021-43305Heap buffer overflow in Clickhouse's LZ4 compression codec w…8.8
- CVE-2021-43307An exponential ReDoS (Regular Expression Denial of Service) …7.5
- CVE-2021-43308An exponential ReDoS (Regular Expression Denial of Service) …7.5
- CVE-2021-43309An exponential ReDoS (Regular Expression Denial of Service) …7.5
- CVE-2021-4331The Plus Addons for Elementor plugin for WordPress is vulner…8.8
- CVE-2021-43310A vulnerability in Keylime before 6.3.0 allows an attacker t…9.8
- CVE-2021-43311A heap-based buffer overflow was discovered in upx, during t…7.5
Are you affected by CVE-2021-43306?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST