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一、 漏洞 CVE-2026-22200 基础信息
漏洞信息
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Vulnerability Title
osTicket (1.18.x < 1.18.3, 1.17.x < 1.17.7) PDF Export Arbitrary File Read
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
Enhancesoft osTicket versions 1.18.x prior to 1.18.3 and 1.17.x prior to 1.17.7 contain an arbitrary file read vulnerability in the ticket PDF export functionality. A remote attacker can submit a ticket containing crafted rich-text HTML that includes PHP filter expressions which are insufficiently sanitized before being processed by the mPDF PDF generator during export. When the attacker exports the ticket to PDF, the generated PDF can embed the contents of attacker-selected files from the server filesystem as bitmap images, allowing disclosure of sensitive local files in the context of the osTicket application user. This issue is exploitable in default configurations where guests may create tickets and access ticket status, or where self-registration is enabled.
来源: 美国国家漏洞数据库 NVD
CVSS Information
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
来源: 美国国家漏洞数据库 NVD
Vulnerability Title
Enhancesoft osTicket 注入漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Enhancesoft osTicket是美国Enhancesoft公司的一套开源的票务系统。 Enhancesoft osTicket 1.18.2及之前版本存在注入漏洞，该漏洞源于票据PDF导出功能存在任意文件读取，可能导致远程攻击者通过特制富文本HTML泄露服务器文件系统中的敏感本地文件。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
厂商产品影响版本CPE订阅
EnhancesoftosTicket 1.18.0 ~ 1.18.3 -
二、漏洞 CVE-2026-22200 的公开POC
#POC 描述源链接神龙链接
1Enhancesoft osTicket versions 1.18.x prior to 1.18.3 and 1.17.x prior to 1.17.7 contain an arbitrary file read vulnerability in the ticket PDF export functionality. A remote attacker can submit a ticket containing crafted rich-text HTML that includes PHP filter expressions which are insufficiently sanitized before being processed by the mPDF PDF generator during export. When the attacker exports the ticket to PDF, the generated PDF can embed the contents of attacker-selected files from the server filesystem as bitmap images, allowing disclosure of sensitive local files in the context of the osTicket application user. This issue is exploitable in default configurations where guests may create tickets and access ticket status, or where self-registration is enabled. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-22200.yamlPOC详情
2CVE-2026-22200: Arbitrary file read + CNEXT RCE in osTickethttps://github.com/horizon3ai/CVE-2026-22200POC详情
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三、漏洞 CVE-2026-22200 的情报信息
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IV. Related Vulnerabilities
Same weakness: CWE-74
V. Comments for CVE-2026-22200

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