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CVE-2026-82838— Default webserver configuration with incorrect CSP

Quick assessment

Affected
pretix venueless
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.

Venueless 默认提供的 Docker 镜像未能正确确保上传的 SVG 文件不会包含可执行的 JavaScript 内容。现已设置有效的内容安全策略（Content Security Policy）。

CVSS 6.4 · Medium EPSS 0.23% · P14

Possible ATT&CK Techniques 1 AI

T1195 · Supply Chain Compromise

Affected Version Matrix 1

VendorProduct Version RangeStatus
pretix venueless < 7dff888 affected
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I. Basic Information for CVE-2026-82838

Vulnerability Information
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Vulnerability Title
Default webserver configuration with incorrect CSP
Source: CVE Program / CVE List V5
Vulnerability Description
The default docker image shipped for Venueless did not properly ensure that uploaded SVG files could not be delivered with executable JavaScript content. A valid Content Security Policy is now set.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
Web页面中脚本相关HTML标签转义处理不恰当(基本跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
pretix venueless 0 ~ 7dff888 -

II. Public POCs for CVE-2026-82838

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-82838

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Other References for CVE-2026-82838 (1)

IV. Related Vulnerabilities

Same product: venueless
Same vendor: pretix
Same weakness: CWE-80

V. Comments for CVE-2026-82838

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