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CVE-2026-57535

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.

pretix是德国pretix公司开源的一个票务系统。 pretix存在跨站脚本漏洞，该漏洞源于内容注入PDF渲染环境可包含HTML内容（包括img标签），如果这些图像的src属性指向URL，PDF渲染引擎将下载并显示该图像，从而泄露渲染服务器信息并可能在本地网络中形成SSRF向量。以下版本受到影响：2026.3.4之前版本、2026.4.4版本之前的2026.4.x版本和2026.5.2版本之前的2026.5.x版本。

AI Predicted 7.5 Difficulty: Easy EPSS 0.31% · P24

Affected Version Matrix 3

VendorProduct Version RangeStatus
pretix pretix < 2026.3.4 affected
2026.4.0< 2026.4.4 affected
2026.5.0< 2026.5.2 affected
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I. Basic Information for CVE-2026-57535

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Content injected to PDF rendering contexts could, in many places, include HTML content including <img> tags. If the src attribute of these images pointed to an URL, the PDF rendering engine would download the image from that place and display it, thereby leaking information about the rendering server and possibly creating an SSRF vector in the local network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L
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
Vulnerability Title
pretix 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pretix是德国pretix公司开源的一个票务系统。 pretix存在跨站脚本漏洞，该漏洞源于内容注入PDF渲染环境可包含HTML内容（包括img标签），如果这些图像的src属性指向URL，PDF渲染引擎将下载并显示该图像，从而泄露渲染服务器信息并可能在本地网络中形成SSRF向量。以下版本受到影响：2026.3.4之前版本、2026.4.4版本之前的2026.4.x版本和2026.5.2版本之前的2026.5.x版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
pretix pretix 0 ~ 2026.3.4 -

II. Public POCs for CVE-2026-57535

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III. Intelligence Information for CVE-2026-57535

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Security Blog Posts for CVE-2026-57535 (1)

Same Patch Batch · pretix · 2026-06-25 · 10 CVEs total

CVE-2026-57532 pretix 跨站脚本漏洞
CVE-2026-57534 Stored XSS in pretix-pages
CVE-2026-57536 Insufficient validation of payment status in pretix-mollie
CVE-2026-57533 pretix 跨站脚本漏洞
CVE-2026-13222 Insufficient validation of payment status in pretix-oppwa
CVE-2026-13225 Stored XSS in ticket confirmation page
CVE-2026-13223 Insufficient validation of payment status in pretix-computop
CVE-2026-13350 venueless 授权问题漏洞
CVE-2026-13314 Stored XSS in pretix-digital

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-57535

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