CVE-2026-93581— CSV导出公式元素不足中和漏洞
一分钟漏洞结论
影响对象
OTRS GmbH (former OTRS AG) OTRS
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
当用户可控的值被包含在 CSV 导出文件中时，未能对其进行充分的净化处理。源自用户输入的数据（包括经过身份验证的用户提交的数据，或通过电子邮件等外部通信渠道接收的数据）可能存储在后续会被包含在 CSV 导出中的字段内。因此，攻击者可以注入以电子表格公式字符（如 =、+、- 或 @）开头的值。如果受影响字段可通过外部输入渠道（如传入的电子邮件）进行填充，则攻击者并不需要具备已认证账户。 当受影响的 CSV 文件在电子表格软件中打开时，应用程序可能会将这些值解释为公式而非纯文本。根据所使用的电子表格应用程序及其安全配置
影响版本矩阵 7
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| OTRS GmbH (former OTRS AG) | ((OTRS)) Community Edition | 6.x |
affected |
| OTRS GmbH (former OTRS AG) | OTRS | 7.0.x |
affected |
8.0.x |
affected | ||
2023.x |
affected | ||
2024.x |
affected | ||
2025.x |
affected | ||
2026.x≤ 2026.6.x |
affected |
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一、 漏洞 CVE-2026-93581 基础信息
漏洞信息
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Vulnerability Title
Insufficient Neutralization of Formula Elements in CSV Exports
来源: CVE Program / CVE List V5
Vulnerability Description
User-controlled values are not sufficiently neutralized when included in CSV exports. Values originating from user input, including data submitted by authenticated users or received through external communication channels such as email, may be stored in fields that are later included in CSV exports. An attacker can therefore inject values beginning with spreadsheet formula characters such as =, +, -, or @. An attacker does not necessarily require an authenticated account if the affected field can be populated through an external input channel such as incoming email.
When an affected CSV file is opened in spreadsheet software, the application may interpret these values as formulas instead of plain text. Depending on the spreadsheet application and its security configuration, a malicious formula may cause unintended actions, disclose information, or invoke external functionality. Exploitation may require the user opening the exported CSV file to confirm one or more security warning dialogs. The vulnerability does not execute code on the OTRS server; any additional impact occurs in the spreadsheet application used to process the exported file.
This issue affects OTRS:
* 7.0.X
* 8.0.X
* 2023.X
* 2024.X
* 2025.X
* 2026.X before 2026.7.X
Please note that ((OTRS)) Community Edition 6.x and before are vulnerable. Products based on the ((OTRS)) Community Edition also very likely to be affected
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
CWE-1236
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| OTRS GmbH (former OTRS AG) | OTRS | 7.0.x | - |
|
| OTRS GmbH (former OTRS AG) | ((OTRS)) Community Edition | 6.x | - |
|
二、漏洞 CVE-2026-93581 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-93581 厂商安全公告 (1)
同批安全公告 · OTRS GmbH (former OTRS AG) · 2026-10-12 · 共 9 条
| CVE-2026-93582 | 9.4 CRITICAL | HTTP基本认证绕过漏洞 |
| CVE-2026-78357 | 9.1 CRITICAL | JWT认证会话撤销不足漏洞 |
| CVE-2026-78355 | 8.7 HIGH | SendSupportBundle 路径遍历漏洞，允许删除指定目录外的文件 |
| CVE-2026-48211 | 5.4 MEDIUM | 导入/导出管理控制台的跨站请求伪造漏洞 |
| CVE-2026-78359 | 5.4 MEDIUM | CustomerUser 多后端身份重复漏洞 |
| CVE-2026-78356 | 5.3 MEDIUM | Unauthenticated Disclosure of Agent Frontend Configuration -> 未授权披露代理前端配置 |
| CVE-2026-48212 | 4.8 MEDIUM | 外部页面存储型XSS漏洞 |
| CVE-2026-78358 | 4.3 MEDIUM | 管理操作跨站请求伪造漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-93581
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