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VulnerabilityPublished Updated

CVE-2025-43229: Apple Safari · Cross-site Scripting

Affects Apple SafariSource CVE Database V5

0

Not known to be exploited · CVSS 6.1 Medium · fixed in 18.6 : update Apple Safari when convenient.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
6.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 26% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 18.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Apple SafariAffected
  • =0
Fixed in–

AI-suggested

Organizations and users should promptly update Safari to version 18.6 or later and macOS to Sequoia 15.6 or later to apply the official patch. Employ web content filtering and intrusion prevention systems to detect and block malicious web content that could trigger UXSS attacks. Educate users about the risks of interacting with untrusted or suspicious links and websites, emphasizing cautious browsing behavior. Implement Content Security Policy (CSP) headers on web applications to restrict script execution and reduce the impact of potential XSS vulnerabilities. Regularly audit and test web applications for XSS and UXSS vulnerabilities, especially when accessed via Safari. Consider deploying browser isolation technologies for high-risk users to contain potential script execution. Finally, ensure incident response plans include procedures for handling client-side script injection incidents.

Description

This issue was addressed through improved state management. This issue is fixed in Safari 18.6, macOS Sequoia 15.6. Processing maliciously crafted web content may lead to universal cross site scripting.

References

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