How severe is GHSA-ccc3-fvfx-mw3v?

No CVSS score has been assigned to GHSA-ccc3-fvfx-mw3v yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-ccc3-fvfx-mw3v?

GHSA-ccc3-fvfx-mw3v affects the following packages: mobsf (PyPI). Ecosystems affected: PyPI.

How do I fix GHSA-ccc3-fvfx-mw3v?

Update mobsf to 4.4.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-ccc3-fvfx-mw3v is resolved across your whole dependency graph.

How do I detect GHSA-ccc3-fvfx-mw3v in my PyPI dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for mobsf, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-ccc3-fvfx-mw3v if there is no patch (or I can't update yet)?

Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Is GHSA-ccc3-fvfx-mw3v actively exploited in the wild?

No public exploit code has been indexed for GHSA-ccc3-fvfx-mw3v yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for GHSA-ccc3-fvfx-mw3v?

GHSA-ccc3-fvfx-mw3v has an EPSS (Exploit Prediction Scoring System) score of 0.8%, placing it in the 58th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-ccc3-fvfx-mw3v?

GHSA-ccc3-fvfx-mw3v is classified as Path Traversal (CWE-22). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was GHSA-ccc3-fvfx-mw3v published, and has it been updated?

GHSA-ccc3-fvfx-mw3v was published on September 2, 2025 and was last updated on July 7, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐍 PyPI

Not in CISA KEV

MobSF Path Traversal in GET /download/<filename> using absolute filenamesGHSA-ccc3-fvfx-mw3v

Fix: MobSF/Mobile-Security-Framework-MobSF@7f3bc08

GHSA-ccc3-fvfx-mw3v is a Path Traversal vulnerability in mobsf. A fix is available for mobsf — see the affected versions and patch details below.

Also known asCVE-2025-58161PYSEC-2026-1672

Published

Sep 2, 2025

Updated

Jul 7, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 8, 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 GHSA-ccc3-fvfx-mw3v.

EPSS Exploitation Probability

via FIRST.org ↗

0.8%probability of exploitation in next 30 days

Lower Risk+0.03%

Lower risk than most CVEs58th percentile — riskier than 58% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

🐍mobsf

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

Description

Summary

The GET /download/<filename> route uses string path verification via os.path.commonprefix, which allows an authenticated user to download files outside the DWD_DIR download directory from "neighboring" directories whose absolute paths begin with the same prefix as DWD_DIR (e.g., .../downloads_bak, .../downloads.old). This is a Directory Traversal (escape) leading to a data leak.

Details

def is_safe_path(safe_root, check_path):
    safe_root  = os.path.realpath(os.path.normpath(safe_root))
    check_path = os.path.realpath(os.path.normpath(check_path))
    return os.path.commonprefix([check_path, safe_root]) == safe_root

commonprefix compares raw strings, not path components. For:

safe_root  = /home/mobsf/.MobSF/downloads
check_path = /home/mobsf/.MobSF/downloads_bak/test.txt

the function returns True, incorrectly treating downloads_bak as inside downloads. Download handler:

# MobSF/views/home.py
@login_required
def download(request):
    root = settings.DWD_DIR
    filename = request.path.replace('/download/', '', 1)
    dwd_file = Path(root) / filename  # absolute 'filename' ignores 'root'
    if '../' in filename or not is_safe_path(root, dwd_file):
        return HttpResponseForbidden(...)
    ext = dwd_file.suffix
    if ext in settings.ALLOWED_EXTENSIONS and dwd_file.is_file():
        return file_download(dwd_file, ...)

If the client supplies an absolute path in filename (starts with / or C:/), Path(root) / filename resolves to that absolute path; the flawed is_safe_path then accepts any sibling directory whose absolute path shares the same string prefix. The ../ check does not catch this.

Which file types are retrievable: Whatever is allowed by settings.ALLOWED_EXTENSIONS

PoC

Prereqs: authenticated user; standard install. Assume:

settings.DWD_DIR = /home/mobsf/.MobSF/downloads

Prepare a sibling directory with the same string prefix and a test file:

mkdir -p /home/mobsf/.MobSF/downloads_bak
echo "test" > /home/mobsf/.MobSF/downloads_bak/test.txt

As an authenticated user, request (note the leading / in the filename and the double/triple slash after /download/ to preserve it):

GET /download///home/mobsf/.MobSF/downloads_bak/test.txt HTTP/1.1
Host: <HOST>
Cookie: sessionid=<YOUR_SESSION>

Other working sibling directory names (if present):

…/downloads.old/...
…/downloads_backup/...
…/downloads1/...
…/downloads-archive/...
…/downloads 2024/... (URL-encoded space: downloads%202024)

Impact

Any authenticated user can download files (with allowed extensions) from sibling directories whose absolute paths start with the same string prefix as DWD_DIR.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`mobsf`	all versions	4.4.1`pip install --upgrade 'mobsf==4.4.1'`

Affected Products

1 product · 1 configurations

Application

mobile security frameworkopensecurity

1 version

4.4.0

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for mobsf, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update mobsf to 4.4.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-ccc3-fvfx-mw3v is resolved across your whole dependency graph.
Workarounds
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

### Summary The GET /download/<filename> route uses string path verification via os.path.commonprefix, which allows an authenticated user to download files outside the DWD_DIR download directory from "neighboring" directories whose absolute paths begin with the same prefix as DWD_DIR (e.g., .../downloads_bak, .../downloads.old). This is a Directory Traversal (escape) leading to a data leak. ### Details ``` def is_safe_path(safe_root, check_path): safe_root = os.path.realpath(os.path.normpath(safe_root)) check_path = os.path.realpath(os.path.normpath(check_path)) return os.path.co