Which versions of Apple are affected by CVE-2025-25300?

Organizations using smartbanner.js should be aware of moderate risk from CVE-2025-25300, a cross-site scripting vulnerability rated CVSS 5.3.. A patch is available.

How to fix or mitigate CVE-2025-25300?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Apple CVE-2025-25300

Q: What is the CVSS score of CVE-2025-25300?

CVE-2025-25300 has a CVSS 4.0 base score of 1.3 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.3%.

LOW

Cross-site Scripting (XSS) (CWE-79)

2025-02-18 security-advisories@github.com

Apple Google XSS

1.3

CVSS 4.0 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

1.3 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

5.3 (MEDIUM) 1.3 (LOW)

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 18:27 vuln.today

CVE Published

Feb 18, 2025 - 18:15 nvd

MEDIUM 5.3

DescriptionGitHub Advisory

smartbanner.js is a customizable smart app banner for iOS and Android. Prior to version 1.14.1, clicking on smartbanner View link and navigating to 3rd party page leaves window.opener exposed. It may allow hostile third parties to abuse window.opener, e.g. by redirection or injection on the original page with smartbanner. rel="noopener" is automatically populated to links as of v1.14.1 which is a recommended upgrade to resolve the vulnerability. Some workarounds are available for those who cannot upgrade. Ensure View link is only taking users to App Store or Google Play Store where security is guarded by respective app store security teams. If View link is going to a third party page, limit smartbanner.js to be used on iOS that decreases the scope of the vulnerability since as of Safari 12.1, rel="noopener" is imposed on all target="_blank" links. Version 1.14.1 of smartbanner.js contains a fix for the issue.

AnalysisAI

smartbanner.js is a customizable smart app banner for iOS and Android. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. smartbanner.js is a customizable smart app banner for iOS and Android. Prior to version 1.14.1, clicking on smartbanner View link and navigating to 3rd party page leaves window.opener exposed. It may allow hostile third parties to abuse window.opener, e.g. by redirection or injection on the original page with smartbanner. rel="noopener" is automatically populated to links as of v1.14.1 which is a recommended upgrade to resolve the vulnerability. Some workarounds are available for those who cannot upgrade. Ensure View link is only taking users to App Store or Google Play Store where security is guarded by respective app store security teams. If View link is going to a third party page, limit smartbanner.js to be used on iOS that decreases the scope of the vulnerability since as of Safari 12.1, rel="noopener" is imposed on all target="_blank" links. Version 1.14.1 of smartbanner.js contains a fix for the issue. Version information: version 1.14.1.

Affected ProductsAI

See vendor advisory for affected versions.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.