How severe is CVE-2025-24803?

No CVSS score has been assigned to CVE-2025-24803 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2025-24803?

CVE-2025-24803 affects the following packages: mobsf (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2025-24803?

Update mobsf to 4.3.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-24803 is resolved across your whole dependency graph.

How do I detect CVE-2025-24803 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 CVE-2025-24803 if there is no patch (or I can't update yet)?

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.

Is CVE-2025-24803 actively exploited in the wild?

No public exploit code has been indexed for CVE-2025-24803 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 CVE-2025-24803?

CVE-2025-24803 has an EPSS (Exploit Prediction Scoring System) score of 0.4%, placing it in the 33th 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 CVE-2025-24803?

CVE-2025-24803 is classified as Cross-site Scripting (XSS) (CWE-79). 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 CVE-2025-24803 published, and has it been updated?

CVE-2025-24803 was published on February 5, 2025 and was last updated on October 28, 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

CVE-2025-24803 — mobsf

Fix: MobSF/Mobile-Security-Framework-MobSF@05206e7

CVE-2025-24803 is a Cross-site Scripting (XSS) vulnerability in mobsf. A fix is available for mobsf — see the affected versions and patch details below.

Stored Cross-Site Scripting (XSS) in MobSF

Also known asGHSA-cxqq-w3x5-7ph3PYSEC-2026-1673

Published

Feb 5, 2025

Updated

Oct 28, 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.
A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-24803.

EPSS Exploitation Probability

via FIRST.org ↗

0.4%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs33th percentile — riskier than 33% 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

Product: MobSF Version: < 4.3.1 CWE-ID: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CVSS vector v.4.0: 8.5 (AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N) CVSS vector v.3.1: 8.1 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N) Description: Stored XSS in the iOS Dynamic Analyzer functionality. Impact: Leveraging this vulnerability would enable performing actions as users, including administrative users. Vulnerable component: dynamic_analysis.html https://github.com/MobSF/Mobile-Security-Framework-MobSF/blob/d1d3b7a9aeb1a8c8c7c229a3455b19ade9fa8fe0/mobsf/templates/dynamic_analysis/ios/dynamic_analysis.html#L406 Exploitation conditions: A malicious application was uploaded to the Correlium. Mitigation: Use escapeHtml() function on the bundle variable. Researcher: Oleg Surnin (Positive Technologies)

Research

Researcher discovered zero-day vulnerability Stored Cross-site Scripting (XSS) in MobSF in iOS Dynamic Analyzer functionality. According to Apple's documentation for bundle ID's, it must contain only alphanumeric characters (A–Z, a–z, and 0–9), hyphens (-), and periods (.). (https://developer.apple.com/documentation/bundleresources/information-property-list/cfbundleidentifier) However, an attacker can manually modify this value in Info.plist file and add special characters to the <key>CFBundleIdentifier</key> value. In the dynamic_analysis.html file you do not sanitize received bundle value from Corellium https://github.com/MobSF/Mobile-Security-Framework-MobSF/blob/d1d3b7a9aeb1a8c8c7c229a3455b19ade9fa8fe0/mobsf/templates/dynamic_analysis/ios/dynamic_analysis.html#L406

Figure 1. Unsanitized bundle

As a result, it is possible to break the HTML context and achieve Stored XSS.

Vulnerability reproduction

To reproduce the vulnerability, follow the steps described below.

• Unzip the IPA file of any iOS application. Listing 1. Unzipping the file

unzip test.ipa

• Modify the value of <key>CFBundleIdentifier</key> by adding restricted characters in the Info.plist file.

Figure 2. Example of the modified Bundle Identifier

• Zip the modified IPA file.

Listing 2. Zipping the file

zip -r xss.ipa Payload/

• Upload the modified IPA file to your virtual device using the Correlium platform.

Figure 3. Example of the uploaded malicious application

• Open the XSS functionality and hover the mouse over the Uninstall button of the malicious app.

Figure 4. Example of the 'Uninstall' button

Figure 5. Example of the XSS

Figure 6. Example of the vulnerable code

Please, assign all credits to: Oleg Surnin (Positive Technologies)

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`mobsf`	all versions	4.3.1`pip install --upgrade 'mobsf==4.3.1'`

Affected Products

1 product · 1 configurations

Application

mobile security frameworkopensecurity

1 version

4.3.0

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 4.3.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-24803 is resolved across your whole dependency graph.
Workarounds
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

**Product:** MobSF **Version:** < 4.3.1 **CWE-ID:** CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') **CVSS vector v.4.0:** 8.5 (AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N) **CVSS vector v.3.1:** 8.1 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N) **Description:** Stored XSS in the iOS Dynamic Analyzer functionality. **Impact:** Leveraging this vulnerability would enable performing actions as users, including administrative users. **Vulnerable component:** `dynamic_analysis.html` https://github.com/MobSF/Mobile-Security-Framework-MobSF/blob/d1d3b7

O3 Security · Impact-Aware SCA

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