{"id":"CVE-2026-101300","kind":"vulnerability","aliases":["CVE-2026-101300"],"related":[],"title":"Wegow: ticket sales PDF export lets promoters forge server-side requests","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.","summary":"The Wegow ticket sales chart PDF export accepts an attacker-controlled svg parameter that is sent to the export.highcharts.com service, which fetches external URLs and embeds the responses in the PDF. An authenticated promoter can use the export service as a proxy to reach attacker-chosen resources.","severity":"high","cvss":7.1,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Wegow","fixed":[],"affected":"unknown (vendor says only actual version)","ecosystem":"vendor"}],"ecosystems":[],"tags":["highcharts","other","promoter-accounts","saas","ssrf","wegow"],"not_affected_if":["auth-required","not-wegow-user"],"how_to_check":"No customer-side check: this is a vendor-hosted feature. Wegow operators could look for POST requests from the PDF download whose svg parameter contains external URLs (href/xlink:href/image references) and review which promoter accounts sent them.","fix":"unknown: INCIBE says no solution reported as of 2026-10-16; no fixed version published. Ask Wegow support; restrict promoter accounts meanwhile.","status":"open","published_at":"2026-10-16T09:17:03+00:00","first_seen_at":"2026-10-23T21:57:12+00:00","triaged_at":"2026-10-25T03:36:44+00:00","updated_at":"2026-10-25T03:47:52+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-25T03:36:44Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","title":"Wegow: ticket sales PDF export lets promoters forge server-side requests","impact":"medium","summary":"The Wegow ticket sales chart PDF export accepts an attacker-controlled svg parameter that is sent to the export.highcharts.com service, which fetches external URLs and embeds the responses in the PDF. An authenticated promoter can use the export service as a proxy to reach attacker-chosen resources.","category":"other","nicknames":[],"who_cares":["wegow","promoter-accounts"],"confidence":0.5,"needs_auth":"yes","worst_case":"Authenticated promoter reaches attacker-chosen external resources via export service","analyst_note":"Check the NVD entry and Wegow vendor advisory for affected versions and fixed release; confirm whether the export runs on Wegow infrastructure or on Highcharts' hosted service.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["auth-required"],"who_is_affected":"unknown","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000536,"input_tokens":3384,"output_tokens":396,"severity_before":"high"},"analyst_status":"done","analyst_note":"Check the NVD entry and Wegow vendor advisory for affected versions and fixed release; confirm whether the export runs on Wegow infrastructure or on Highcharts' hosted service.","search":"'-101300':15A,18A '-2026':14A,17A 'accept':35B 'accord':94C 'account':24B,104C 'allow':147C 'attack':38B,74B,132C 'attacker-chosen':73B 'attacker-control':37B,131C 'authent':61B,99C 'behavior':146C 'chart':32B,88C 'chosen':75B 'content':119C 'control':39B,133C 'cve':13A,16A 'download':116C 'emb':54B,137C 'export':5A,34B,66B,90C,149C 'export.highcharts.com':47B,124C 'extern':51B,134C 'fetch':50B 'forg':8A 'forgeri':81C 'function':91C 'generat':113C,142C 'highchart':20B 'http':128C 'intermediari':156C 'let':6A 'manipul':106C 'paramet':41B,108C 'pdf':4A,33B,59B,89C,117C,143C 'post':111C 'process':121C 'promot':7A,23B,62B,103C 'promoter-account':22B 'proxi':70B 'reach':72B 'report':83C,97C,145C 'request':12A,80C,112C,129C,159C 'resourc':76B,135C 'respons':56B,139C 'saa':25B 'sale':3A,31B,87C 'select':115C 'send':127C 'sent':44B 'server':10A,78C 'server-sid':9A,77C 'servic':48B,67B,125C,150C 'side':11A,79C 'ssrf':26B,82C 'svg':40B 'ticket':2A,30B,86C 'url':52B 'use':64B,153C 'user':100C 'wegow':1A,19A,27B,29B,93C","nicknames":[],"mitigations":[],"who_affected":"Only Wegow Technologies' hosted backoffice is concerned (ticket sales chart PDF export, backoffice.wegow.com). An attacker needs a promoter account; they can alter the svg parameter so the Highcharts export service (export.highcharts.com) requests attacker-chosen URLs and embeds the responses in the PDF. Wegow customers and promoters have nothing to patch themselves; everyone else can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-16T09:17:03+00:00","kev":null,"cvss_vector":"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","cvss_by":"cve-coordination@incibe.es","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-101300","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101300","severity":null,"published_at":"2026-10-16T09:17:03+00:00","modified_at":"2026-10-16T15:19:36+00:00","first_seen_at":"2026-10-23T21:57:12+00:00","fetched_at":"2026-10-23T22:28:55+00:00","note":null},{"source":"analyst","external_id":"CVE-2026-101300:796","url":null,"severity":null,"published_at":"2026-10-25T03:47:52+00:00","modified_at":"2026-10-25T03:47:52+00:00","first_seen_at":"2026-10-25T03:47:52+00:00","fetched_at":"2026-10-25T03:47:52+00:00","note":"Read INCIBE-CERT advisory (primary coordinator) and NVD: affects Wegow backoffice (backoffice.wegow.com) PDF export; no fix or version range published; no exploitation or PoC found. Nothing verified (no vendor statement). Not searched social."}],"documents":[{"id":3346,"url":"https://www.incibe.es/en/incibe-cert/notices/aviso/server-side-request-forgery-wegow-pdf-export","title":"INCIBE-CERT: Server-Side Request Forgery in Wegow PDF export","kind":"advisory","source":"analyst","text":"INCIBE coordinated CVE-2026-101300. Affected resource: ticket sales chart PDF export in backoffice.wegow.com. Importance 4 - High. CVSS v4 7.1. CWE-918. Finder: Cosme Vázquez Tomé. Solution: No solution has been reported at this time. Published 16/10/2026.","published_at":null,"relation":"advisory","confidence":null,"note":null},{"id":3348,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101300","title":"NVD CVE-2026-101300","kind":"other","source":"analyst","text":"NVD: not scheduled for enrichment. Wegow Technologies Wegow, affected 'actual version' (no version range). CVSS 4.0 7.1 from INCIBE.","published_at":null,"relation":"mentions","confidence":null,"note":null}],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}