Medium severity · published Feb 18, 2026
CVE-2026-26281
InvoicePlane has Stored Cross-Site Scripting (XSS) Issue in Sumex Invoice View
4.4
CVSS
0.2%
EPSS
No
On KEV
Description
InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A stored cross-site scripting (XSS) vulnerability in the Sumex invoice view allows an authenticated user with client and invoice management privileges to execute arbitrary JavaScript in the browser of any user viewing the invoice. This can lead to session hijacking, data theft, or other malicious actions on behalf of the victim user. Version 1.7.1 patches the issue.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IN
InvoicePlane · InvoicePlane
= 1.7.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-26281
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-26281
Patch
https://github.com/InvoicePlane/InvoicePlane/commit/93622f2df88a860d89bfee56012cabb2942061d6
Exploit
https://github.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-ccpx-2v5c-cc24
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