CVE-2026-101300
7.1HighPublished 16 Oct 2026 · NVD status: Deferred · AI triage by gemini-3.8-flash
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Impact
- High impact on integrity
- Weakness
- CWE-918
Impact
Authenticated users with promoter accounts can trigger server-side HTTP requests via an intermediary service and extract external responses embedded in generated PDFs. The attacker needs valid promoter-level credentials on Wegow to manipulate the export request.
Root cause
The PDF export functionality fails to validate the user-supplied <svg> POST parameter before passing it to export.highcharts.com for processing.
Affected systems
Versions not listed — check the vendor advisory.
CVSS v4.0 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Fix & remediation
Wegow must sanitize or validate the SVG payload on the server side or stop delegating chart rendering to external export services; disable or restrict promoter access to the PDF export feature until the vendor issues a patch.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD description
Server-Side Request Forgery (SSRF) reported in the ticket sales chart PDF export functionality of Wegow. According to the report, an authenticated user with a promoter account can manipulate the <svg> parameter of the POST request generated by selecting Download PDF. The content is processed by the export.highcharts.com service, which sends HTTP requests to attacker-controlled external resources and embeds their responses in the generated PDF. The reported behavior allows the export service to be used as an intermediary for these requests.