Medium severity · published Jul 6, 2023
CVE-2023-3521
Cross-site Scripting (XSS) - Reflected in fossbilling/fossbilling
6.1
CVSS
0.9%
EPSS
No
On KEV
Description
Cross-site Scripting (XSS) - Reflected in GitHub repository fossbilling/fossbilling prior to 0.5.4.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
fossbilling/fossbilling · fossbilling
before 0.5.4 · source: vendor
FO
Fossbilling · Fossbilling
before 0.5.4 · source: NVD, CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-3521
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-3521
Patch
https://github.com/fossbilling/fossbilling/commit/5eb516d4ebcb764db1b2edf9c8d0539e76ebde52
Exploit
https://huntr.dev/bounties/76a3441d-7f75-4a8d-a7a0-95a7f5456eb0
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