CVE-2026-13048— GSHANK Data-MuForm 代码注入漏洞
一分钟漏洞结论
影响对象
CVE-2026-13048
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。
GSHANK Data-MuForm是GSHANK组织的一款数据表单开发框架。 GSHANK Data-MuForm 0.05及之前版本存在安全漏洞，该漏洞源于load_lexicon将语言属性插入目录文件名且未检查是否为裸语言标签，导致路径遍历，同时解析消息目录时从Plural-Forms头执行Perl代码，可能导致任意代码执行。
一、 漏洞 CVE-2026-13048 基础信息
漏洞信息
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Vulnerability Title
Data::MuForm::Localizer versions through 0.05 for Perl execute Perl from a message catalog header, reached at an arbitrary path because load_lexicon interpolates the language attribute into the catalog filename
来源: CVE Program / CVE List V5
Vulnerability Description
Data::MuForm::Localizer versions through 0.05 for Perl execute Perl from a message catalog header, reached at an arbitrary path because load_lexicon interpolates the language attribute into the catalog filename.
load_lexicon builds the catalog path by appending `Messages/$lang.po` to the directory holding Localizer.pm, where $lang is the language attribute, with no check that it names a bare locale tag. A value holding `../` segments walks out of the message directory, so any readable path with a `.po` suffix is loaded. While parsing the catalog, extract_header_msgstr takes the `Plural-Forms:` header, prefixes `$` to the bare words nplurals, plural and n, and passes the rest verbatim into a string that is evaluated: the nplurals form evaluates the header expression immediately, and the plural_code form compiles it into a subroutine whose body runs when a plural message is localized. A header of `nplurals=2; plural=(system('...'),0);` therefore runs that command as the catalog loads. The evaluation inherits strict, so an expression that assigns to an undeclared variable fails to compile, while one built from calls alone does not.
An application that sets the language attribute from request data, an Accept-Language header or a locale parameter, and an attacker who can place a file with a `.po` suffix and chosen contents at a readable path, together give code execution as the application user. The message expansion path is not affected: expand_named substitutes only the placeholder names the caller supplies, and _mangle_value returns the value unchanged.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
动态执行代码中指令转义处理不恰当(Eval注入)
来源: CVE Program / CVE List V5
Vulnerability Title
GSHANK Data-MuForm 代码注入漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
GSHANK Data-MuForm是GSHANK组织的一款数据表单开发框架。 GSHANK Data-MuForm 0.05及之前版本存在安全漏洞，该漏洞源于load_lexicon将语言属性插入目录文件名且未检查是否为裸语言标签，导致路径遍历，同时解析消息目录时从Plural-Forms头执行Perl代码，可能导致任意代码执行。
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 |
|---|---|---|---|---|
| - | - | 0 ~ 0.05 | - |
|
二、漏洞 CVE-2026-13048 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
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