# CVE-2025-63520: feehicms XSS (Medium 6.1)

🐘

🐘 Packagist

Not in CISA KEV

MEDIUM severity

# CVE-2025-63520 — feehicms

MEDIUM 

CVE-2025-63520 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in feehi/feehicms. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

FeehiCMS is vulnerable to cross-site scripting via the id parameter of the User Update function

Also known as[GHSA-c2vx-rx6x-m9wj](/vulnerability/GHSA-c2vx-rx6x-m9wj)

Published

Dec 1, 2025

Updated

Nov 5, 2026

Affected

1 pkg

Patched

See advisory

Exploits

None indexed

Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

## Exploitation Status

### Proof-of-concept exploit code exists

-   CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-63520.

## EPSS Exploitation Probability

[via FIRST.org ↗](https://www.first.org/epss/)

0.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs18th percentile — riskier than 18% of all scored CVEsHighest risk

0.00%0.25%0.51%0.76%0.0%0.3%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from [FIRST.org EPSS](https://www.first.org/epss/).

## How urgent is this, really

## Where this sits among everything scored

## Real-World Exposure

1 pkg affected

🐘`feehi/feehicms`

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

## Description

Cross Site Scripting (XSS) vulnerability in FeehiCMS 2.1.1 via the id parameter of the User Update function (?r=user%2Fupdate).

## Affected Packages

1 total

Ecosystem

Package

Vulnerable range

Fix

🐘Packagist

`feehi/feehicms` 

all versions

No fix

## Affected Products

1 product · 1 configurations

Application

`feehicms`feehi

1 version

2.1.1

## Detection & mitigation playbook

Open-source dependency

1.  ### Detect
    
    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for feehi/feehicms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
    
2.  ### Remediation status
    
    The records we use list no patched version of feehi/feehicms for CVE-2025-63520. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
    
3.  ### Mitigate without a patch
    
    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.
    

## Frequently Asked Questions

Cross Site Scripting (XSS) vulnerability in FeehiCMS 2.1.1 via the id parameter of the User Update function (?r=user%2Fupdate).

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