CVE-2021-31682 json
The login portal for the Automated Logic WebCTRL/WebCTRL OEM web application contains a vulnerability that allows for reflected XSS attacks…
published 2021-10-22 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-18568
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 10.5%
- EPSS 10.5% chance of exploitation in 30 days, percentile 95%
- public exploits
- 1
- Exploit-DB, plus a Nuclei check
Summary
The login portal for the Automated Logic WebCTRL/WebCTRL OEM web application contains a vulnerability that allows for reflected XSS attacks due to the operatorlocale GET parameter not being sanitized. This issue impacts versions 6.5 and below. This issue works by passing in a basic XSS payload to a vulnerable GET parameter that is reflected in the output without sanitization.
Timeline
- Published
- First public exploit (EDB-50463)
Exploit prediction
10.51% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-50463 WebCTRL OEM 6.5 - 'locale' Reflected Cross-Site Scripting (XSS) webapps, 2021-10-29
- Nuclei template WebCTRL OEM <= 6.5 - Cross-Site Scripting nuclei detection template
- github.com https://github.com/3ndG4me/WebCTRL-OperatorLocale-Parameter-Reflected-XSS referenced PoC, tagged "exploit" by a source, unverified
- packetstormsecurity.com http://packetstormsecurity.com/files/164707/WebCTRL-OEM-6.5-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/3ndG4me/WebCTRL-OperatorLocale-Parameter-Reflected-XSS
exploit, third-party-advisory
-
packetstormsecurity.com
/files/164707/WebCTRL-OEM-6.5-Cross-Site-Scripting.html
exploit, third-party-advisory, vdb-entry
-
automatedlogic.com
/en/products-services/webctrl-building-automation-system/
vendor-advisory
Sources
- CVE List CVE-2021-31682
- NVD CVE-2021-31682
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