Vulnerability Information
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Vulnerability Title
FreshRSS vulnerable to Cross-site Scripting by embedding <script> tag inside <iframe srcdoc>
Vulnerability Description
FreshRSS is a self-hosted RSS feed aggregator. Prior to version 1.26.2, HTML is sanitized improperly inside the `<iframe srcdoc>` attribute, which leads to cross-site scripting (XSS) by loading an attacker's UserJS inside `<script src>`. In order to execute the attack, the attacker needs to control one of the victim's feeds and have an account on the FreshRSS instance that the victim is using. An attacker can gain access to the victim's account by exploiting this vulnerability. If the victim is an admin it would be possible to delete all users (cause damage) or execute arbitrary code on the server by modifying the update URL using fetch() via the XSS. Version 1.26.2 contains a patch for the issue.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Vulnerability Title
FreshRSS 跨站脚本漏洞
Vulnerability Description
FreshRSS是FreshRSS开源的一个免费的、可自行托管的 RSS 聚合器。 FreshRSS 1.26.2之前版本存在跨站脚本漏洞，该漏洞源于iframe srcdoc属性清理不当，可能导致跨站脚本攻击。
CVSS Information
N/A
Vulnerability Type
N/A