Critical severity · published Sep 6, 2021
CVE-2021-40532
Telegram Web K Alpha before 0.7.2 mishandles the characters in a document extension
9.8
CVSS
1.3%
EPSS
No
On KEV
Description
Telegram Web K Alpha before 0.7.2 mishandles the characters in a document extension.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WK
Web K Alpha · Telegram
before 0.7.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-40532
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-40532
Patch
https://github.com/morethanwords/tweb/commit/f224e459c36eb96b2cf9dba559a48b1f08d23330
More from Web K Alpha
6.1
CVE-2021-37596
Telegram Web K Alpha 0.6.1 allows XSS via a document name