Medium severity · published Sep 15, 2026
CVE-2026-88261
Improper input validation vulnerability in bizwell xClick allows Stored XSS
5.1
CVSS
0.4%
EPSS
No
On KEV
Description
Improper input validation vulnerability in bizwell xClick allows Stored XSS.
This issue affects xClick: R2, R3, and R3.1.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XC
xClick · bizwell
R2; R3; R3.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-88261
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-88261
www.bizwell.net
https://www.bizwell.net/solutions/groupware
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