CVE-2021-32541
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…
Does this matter?
Lower severity and a low EPSS score (1.51%). Track it; it rarely justifies an emergency change on its own.
Description
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
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- EPSS
- 1.51% probability · 74th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- sysjust/cts web
- Source
- twcert@cert.org.tw
EPSS 1.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://www.chtsecurity.com/news/40e165e2-e539-49bc-bcf1-e3b27c29e344Third Party Advisory
- https://www.twcert.org.tw/tw/cp-132-4757-893eb-1.htmlThird Party Advisory
- https://www.chtsecurity.com/news/40e165e2-e539-49bc-bcf1-e3b27c29e344Third Party Advisory
- https://www.twcert.org.tw/tw/cp-132-4757-893eb-1.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.