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CVE-2025-32015— FreshRSS vulnerable to Cross-site Scripting by embedding <script> tag inside <iframe srcdoc>

Quick assessment

Affected
FreshRSS FreshRSS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 6.7 · Medium EPSS 0.46% · P40
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I. Basic Information for CVE-2025-32015

Vulnerability Information
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Vulnerability Title
FreshRSS vulnerable to Cross-site Scripting by embedding <script> tag inside <iframe srcdoc>
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L
Source: 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)
Source: CVE Program / CVE List V5
Vulnerability Title
FreshRSS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
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。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
FreshRSS FreshRSS < 1.26.2 -

II. Public POCs for CVE-2025-32015

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III. Intelligence Information for CVE-2025-32015

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Same Patch Batch · FreshRSS · 2025-06-04 · 6 CVEs total

CVE-2025-46341 7.1 HIGH Privilege escalation via SSRF when using HTTP auth
CVE-2025-31136 6.7 MEDIUM FreshRSS vulnerable to Cross-site Scripting by <iframe>'ing a vulnerable same-origin page
CVE-2025-31482 4.3 MEDIUM FreshRSS vulnerable to DoS by malicious feed entry loading logout URL
CVE-2025-46339 4.3 MEDIUM FreshRSS vulnerable to favicon cache poisoning via proxy
CVE-2025-31134 FreshRSS vulnerable to directory enumeration via ext.php

IV. Related Vulnerabilities

Same product: FreshRSS
Same vendor: FreshRSS
Same weakness: CWE-79