CVE-2026-12862 PUBLISHED

XLSX formula injection in exports

Assigner: rami.io
Reserved: 22.06.2026 Published: 22.06.2026 Updated: 22.06.2026

Untrusted user data was passed verbatim to Excel exports for administrators. This allowed formula injection which can be used to compromise the environment of the user loading the file or other data in the file.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	Low
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	pretix
Product	Venueless
Versions	Default: unaffected affected from 0.0.0 to 0a35457f (excl.)

Credits

Rokkam Vamshi finder

References

https://github.com/venueless/venueless/security/advisories/GHSA-5hw3-655h-7m86

Problem Types

CWE-148 Improper neutralization of input leaders CWE

Impacts

CAPEC-23 File Content Injection