CVE-2026-122325— eventyay-exhibition through commit f68888e Cross-Event Attendee Data Disclosure via Lead Creation API

Quick assessment

Affected

fossasia eventyay-exhibition

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.

Fossasia 的 Eventyay Exhibition 项目在提交 f68888e 中存在一个授权绕过漏洞，该漏洞位于参展商线索创建 API 中，允许参展商访问其他组织者的参会者数据。启用了线索扫描功能的参展商，可以通过在 URL 中指定目标组织者的名称，并提交另一个活动的匿名化 ID 或订单密钥，从而获取参会者的姓名、电子邮件、地址及回答内容。

CVSS 3.1 · Low EPSS 0.22% · P13 Updated Nov 05, 2026

Possible ATT&CK Techniques 3 AI

T1078 · Valid Accounts T1086 T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

Vendor	Product	Version Range	Status
fossasia	eventyay-exhibition	`f68888e312c220588ddc13f8bbc4bab927b5e530`	affected

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Vulnerability Information

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Vulnerability Title

eventyay-exhibition through commit f68888e Cross-Event Attendee Data Disclosure via Lead Creation API

Source: CVE Program / CVE List V5

Vulnerability Description

fossasia eventyay-exhibition through commit f68888e contains an authorization bypass vulnerability in the exhibitor lead creation API that allows exhibitors to access other organizers' attendee data. Exhibitors with lead scanning enabled can submit another event's pseudonymization id or order secret while naming that organizer in the URL to retrieve attendee names, emails, addresses and answers.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

通过用户控制密钥绕过授权机制

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
fossasia	eventyay-exhibition	f68888e312c220588ddc13f8bbc4bab927b5e530	-

II. Public POCs for CVE-2026-122325

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-122325

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Other References for CVE-2026-122325 (6)

https://github.com/fossasia/eventyay-exhibition/pull/383 issue-tracking patch
https://github.com/fossasia/eventyay-exhibition/blob/f68888e312c220588ddc13f8bbc4bab927b5e530/exhibition/api.py#L399-L470 technical-description
https://hackmd.io/@hieuPenguinnn/eventyay-exhibition-cross-event-lead-idor third-party-advisory
https://github.com/fossasia/eventyay-exhibition product
https://github.com/fossasia/eventyay-exhibition/issues/343 issue-tracking
https://www.vulncheck.com/advisories/eventyay-exhibition-through-commit-f68888e-cross-event-attendee-data-disclosure-via-lead-creation-api third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-122325

IV. Related Vulnerabilities

Same vendor: fossasia

Same weakness: CWE-639