Vulnerability · Published Jun 22, 2026 · Assigned by rami.io

CVE-2026-12862XLSX formula injection in exports

Medium 5.1

In plain English

A medium-severity security flaw in Venueless from pretix. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).

Severity (CVSS 4.0)5.1Medium
Exploit odds (30 days)0.4%top 67.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
pretix Venueless 0.0.0 – before 0a35457f

Weakness: CWE-148 · 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

References