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CVE-2026-101266— Checkout validation bypass

Quick assessment

Affected
pretix pretix
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

结账流程中的逻辑缺陷允许用户通过跳过整个入住步骤来绕过在入住期间执行的验证。

CVSS 1.3 · Low

Possible ATT&CK Techniques 1 AI

T1021 · Remote Services
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I. Basic Information for CVE-2026-101266

Vulnerability Information
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Vulnerability Title
Checkout validation bypass
Source: CVE Program / CVE List V5
Vulnerability Description
A logic flaw in the checkout flow allows users to bypass validations performed during the check-in by skipping entire check-in steps.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
pretix pretix 0.0 ~ 2026.5.5 -

II. Public POCs for CVE-2026-101266

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III. Intelligence Information for CVE-2026-101266

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Other References for CVE-2026-101266 (1)

Same Patch Batch · pretix · 2026-09-29 · 6 CVEs total

CVE-2026-101267 2.7 LOW Revenue information leak
CVE-2026-101269 2.3 LOW Incorrect session validation for API-uploaded files
CVE-2026-101270 2.1 LOW HTML injection
CVE-2026-101271 2.1 LOW OAuth credentials not disabled when application is disabled
CVE-2026-101268 1.7 LOW Customer session fixation

IV. Related Vulnerabilities

Same product: pretix
Same vendor: pretix
Same weakness: CWE-20

V. Comments for CVE-2026-101266

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