CVE-2021-27436
Last modified
CVE-2021-27436 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. WebAccess/SCADA Versions 9.0 and prior is vulnerable to cross-site scripting, which may allow an attacker to send malicious JavaScript code to an unsuspecting user, which could result in hijacking of the user’s cookie/session tokens, redirecting the user to a malicious webpage and performing unintended browser actions.. EPSS estimates a 0.69% chance of exploitation in the next 30 days.
Description
WebAccess/SCADA Versions 9.0 and prior is vulnerable to cross-site scripting, which may allow an attacker to send malicious JavaScript code to an unsuspecting user, which could result in hijacking of the user’s cookie/session tokens, redirecting the user to a malicious webpage and performing unintended browser actions.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Advantech | Webaccess\/Scada | <= 9.0 |
References
- https://us-cert.cisa.gov/ics/advisories/icsa-21-075-01Third Party Advisory, US Government Resource
- https://us-cert.cisa.gov/ics/advisories/icsa-21-075-01Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-27436?
How severe is CVE-2021-27436?
How do I fix CVE-2021-27436?
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-2021-27430GE UR bootloader binary Version 7.00, 7.01 and 7.02 included…6.8
- CVE-2021-27431ARM CMSIS RTOS2 versions prior to 2.1.3 are vulnerable to in…9.8
- CVE-2021-27432OPC Foundation UA .NET Standard versions prior to 1.4.365.48…7.5
- CVE-2021-27433ARM mbed-ualloc memory library version 1.3.0 is vulnerable t…9.8
- CVE-2021-27434Products with Unified Automation .NET based OPC UA Client/Se…7.5
- CVE-2021-27435ARM mbed product Version 6.3.0 is vulnerable to integer wrap…9.8
- CVE-2021-27437The affected product allows attackers to obtain sensitive in…9.1
- CVE-2021-27438The software contains a hard-coded password it uses for its …8.8
- CVE-2021-27439TencentOS-tiny version 3.1.0 is vulnerable to integer wrap-a…9.8
- CVE-2021-27440The software contains a hard-coded password it uses for its …9.8
- CVE-2021-27442The Weintek cMT product line is vulnerable to a cross-site s…6.1
- CVE-2021-27444The Weintek cMT product line is vulnerable to various improp…9.8
Are you affected by CVE-2021-27436?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST