CVE-2026-48788— umputun remark42 处理逻辑错误漏洞
一分钟漏洞结论
影响对象
umputun remark42
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。
umputun remark42是umputun个人开发者的一个轻量级评论系统。 umputun remark42 1.6.0版本至1.15.0版本存在处理逻辑错误漏洞，该漏洞源于内容类型欺骗，可能导致跨站脚本攻击。
获取后续新漏洞提醒
登录后订阅
一、 漏洞 CVE-2026-48788 基础信息
漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
查看神龙十问 ↗
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
Remark42: Cross-Site Scripting (XSS) on /api/v1/img via content-type spoofing
来源: CVE Program / CVE List V5
Vulnerability Description
Remark42 is a self-hosted comment engine for blogs, articles, or any other place where readers can add comments. Versions 1.6.0 through 1.15.0 contain a Cross-Site Scripting (XSS) vulnerability exploitable through content-type spoofing. The Remark42 image proxy fetches an arbitrary remote URL and re-serves the response from Remark42's own origin. During the download phase, the proxy determines whether the resource is an image by inspecting only the Content-Type header advertised by the remote server, never examining the actual bytes; during the serving phase, it instead derives the response Content-Type by sniffing those bytes with http.DetectContentType. An attacker can exploit this inconsistency by hosting a URL that advertises Content-Type: image/png while returning an HTML/JavaScript body: the download check accepts it as an image, the serving path sniffs the body and emits Content-Type: text/html, and the browser renders the attacker-controlled HTML/JavaScript as a document within Remark42's origin. Exploitation requires no Remark42 account on the target instance; the attacker only needs to host the malicious upstream URL and deliver the proxy link to a victim by any means, such as email, direct message, or a link on another website. This issue has been fixed in version 1.16.0.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
来源: CVE Program / CVE List V5
Vulnerability Title
umputun remark42 处理逻辑错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
umputun remark42是umputun个人开发者的一个轻量级评论系统。 umputun remark42 1.6.0版本至1.15.0版本存在处理逻辑错误漏洞，该漏洞源于内容类型欺骗，可能导致跨站脚本攻击。
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
二、漏洞 CVE-2026-48788 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
登录以生成 AI POC三、漏洞 CVE-2026-48788 的情报信息
请登录查看更多情报信息。
CVE-2026-48788 补丁与修复 (1)
CVE-2026-48788 厂商安全公告 (1)
CVE-2026-48788 厂商页面 (1)
IV. Related Vulnerabilities
Same product: remark42