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

Medium 6.7 Published Updated

Attacker with feed control and account access can execute XSS to hijack victim accounts or run arbitrary code on the server.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-32015?

CVE-2025-32015 is a medium-severity cross-site scripting vulnerability in FreshRSS, published on 4 Jun 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-79

Which versions are affected by CVE-2025-32015?

It affects 1 product.

Products include Freshrss Freshrss.

How do I fix CVE-2025-32015?

No fix has been published for CVE-2025-32015 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-32015 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-32015 exists.

Sources

Also known as GHSA-wgrq-mcwc-8f8v.

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