CVE-2021-32541 json
SysJust CTS Web - Broken Access Control
published 2021-05-28 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-19387
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
The CTS Web transaction system related to authentication and session management is implemented incorrectly, which allows remote unauthenticated attackers can send a large number of valid usernames, and force those logged-in account to log out, causing the user to be unable to access the services
Patch / fix
- sysjust cts_web 2021.3.24
Exploit prediction
1.51% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Affected products
- SysJust CTS Web
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
twcert.org.tw
/tw/cp-132-4757-893eb-1.html
third-party-advisory
-
chtsecurity.com
/news/40e165e2-e539-49bc-bcf1-e3b27c29e344
third-party-advisory
Sources
- CVE List CVE-2021-32541
- NVD CVE-2021-32541
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.