CVE-2026-101268— Customer session fixation
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.
If an attacker is able to convince a victim on a specially crafted link, the victim is logged in to the attacker's customer account. If the victim does not notice this, this might lead to their order details being stored into the attacker's account. The attack
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I. Basic Information for CVE-2026-101268
Vulnerability Information
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Vulnerability Title
Customer session fixation
Source: CVE Program / CVE List V5
Vulnerability Description
If an attacker is able to convince a victim on a specially crafted link, the victim is logged in to the attacker's customer account. If the victim does not notice this, this might lead to their order details being stored into the attacker's account. The attack only works when the event is available on a different domain than the organizer page.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-101268
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Security Blog Posts for CVE-2026-101268 (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-2026-101266 | 1.3 LOW | Checkout validation bypass |
IV. Related Vulnerabilities
V. Comments for CVE-2026-101268
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