CVE-2025-31205
published 2025-05-12CVE-2025-31205: The issue was addressed with improved checks. This issue is fixed in Safari 18.5, iOS 18.5 and iPadOS 18.5, macOS Sequoia 15.5, tvOS 18.5, visionOS 2.5…
PriorityP431medium6.5CVSS 3.1
AVNACLPRNUIRSUCHINAN
EPSS
0.39%
32.5th percentile
The issue was addressed with improved checks. This issue is fixed in Safari 18.5, iOS 18.5 and iPadOS 18.5, macOS Sequoia 15.5, tvOS 18.5, visionOS 2.5, watchOS 11.5. A malicious website may exfiltrate data cross-origin.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_18.5_and_ipados | — | — |
| apple | ios_and_ipados | < 18.5 | 18.5 |
| apple | ipados | < 18.5 | 18.5 |
| apple | iphone_os | < 18.5 | 18.5 |
| apple | macos | < 15.5 | 15.5 |
| apple | macos_sequoia | — | — |
| apple | safari | < 18.5 | 18.5 |
| apple | safari | — | — |
| apple | tvos | < 18.5 | 18.5 |
| apple | tvos | — | — |
| apple | visionos | < 2.5 | 2.5 |
| apple | visionos | — | — |
| apple | watchos | < 11.5 | 11.5 |
| apple | watchos | — | — |
| debian | webkit2gtk | < webkit2gtk 2.48.3-1~deb12u1 (bookworm) | webkit2gtk 2.48.3-1~deb12u1 (bookworm) |
| debian | wpewebkit | < webkit2gtk 2.48.3-1~deb12u1 (bookworm) | webkit2gtk 2.48.3-1~deb12u1 (bookworm) |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Ubuntu
WebKitGTK vulnerabilities
vendor_ubuntu·2025-06-11
CVE-2025-24223 WebKitGTK vulnerabilities
Title: WebKitGTK vulnerabilities
Summary: Several security issues were fixed in WebKitGTK.
Several security issues were discovered in the WebKitGTK Web and JavaScript
engines. If a user were tricked into viewing a malicious website, a remote
attacker could exploit a variety of issues related to web browser security,
including cross-site scripting attacks, denial of service attacks, and
arbitrary code execution.
Instructions: This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any applications
that use WebKitGTK, such as Epiphany, to make all the necessary changes.
Red Hat
webkitgtk: A malicious website may exfiltrate data cross-origin
vendor_redhat·2025-05-15·CVSS 6.5
CVE-2025-31205 [MEDIUM] CWE-200 webkitgtk: A malicious website may exfiltrate data cross-origin
webkitgtk: A malicious website may exfiltrate data cross-origin
The issue was addressed with improved checks. This issue is fixed in Safari 18.5, iOS 18.5 and iPadOS 18.5, macOS Sequoia 15.5, tvOS 18.5, visionOS 2.5, watchOS 11.5. A malicious website may exfiltrate data cross-origin.
A flaw was found in WebKitGTK. A malicious website may steal data cross-origin due to improper security checks within the web browser or rendering engine, leading to unauthorized disclosure of information.
Statement: To exploit this flaw, an attacker needs to trick a user into visiting a malicious website.
Mitigation: Do not visit untrusted websites. Also, do not process or load untrusted web content with WebKitGTK.
In Red Hat Enterprise Linux 7, the following packages require WebKitGTK4: evolution-data-se
Apple
CVE-2025-31205: tvOS 18.5
vendor_apple·2025-05-12·CVSS 6.5
CVE-2025-31205 [MEDIUM] CVE-2025-31205: tvOS 18.5
Apple Security Update: About the security content of tvOS 18.5
Product: tvOS
Version: 18.5
CVE: CVE-2025-31205
Component: WebKit
Impact: A malicious website may exfiltrate data cross-origin
Description: The issue was addressed with improved checks.
Apple
CVE-2025-31205: watchOS 11.5
vendor_apple·2025-05-12·CVSS 6.5
CVE-2025-31205 [MEDIUM] CVE-2025-31205: watchOS 11.5
Apple Security Update: About the security content of watchOS 11.5
Product: watchOS
Version: 11.5
CVE: CVE-2025-31205
Component: WebKit
Impact: A malicious website may exfiltrate data cross-origin
Description: The issue was addressed with improved checks.
Apple
CVE-2025-31205: macOS Sequoia 15.5
vendor_apple·2025-05-12·CVSS 6.5
CVE-2025-31205 [MEDIUM] CVE-2025-31205: macOS Sequoia 15.5
Apple Security Update: About the security content of macOS Sequoia 15.5
Product: macOS Sequoia
Version: 15.5
CVE: CVE-2025-31205
Component: WebKit
Impact: A malicious website may exfiltrate data cross-origin
Description: The issue was addressed with improved checks.
Apple
CVE-2025-31205: visionOS 2.5
vendor_apple·2025-05-12·CVSS 6.5
CVE-2025-31205 [MEDIUM] CVE-2025-31205: visionOS 2.5
Apple Security Update: About the security content of visionOS 2.5
Product: visionOS
Version: 2.5
CVE: CVE-2025-31205
Component: WebKit
Impact: A malicious website may exfiltrate data cross-origin
Description: The issue was addressed with improved checks.
Apple
CVE-2025-31205: Safari 18.5
vendor_apple·2025-05-12·CVSS 6.5
CVE-2025-31205 [MEDIUM] CVE-2025-31205: Safari 18.5
Apple Security Update: About the security content of Safari 18.5
Product: Safari
Version: 18.5
CVE: CVE-2025-31205
Component: WebKit
Impact: A malicious website may exfiltrate data cross-origin
Description: The issue was addressed with improved checks.
Apple
CVE-2025-31205: iOS 18.5 and iPadOS 18.5
vendor_apple·2025-05-12·CVSS 6.5
CVE-2025-31205 [MEDIUM] CVE-2025-31205: iOS 18.5 and iPadOS 18.5
Apple Security Update: About the security content of iOS 18.5 and iPadOS 18.5
Product: iOS 18.5 and iPadOS
Version: 18.5
CVE: CVE-2025-31205
Component: WebKit
Impact: A malicious website may exfiltrate data cross-origin
Description: The issue was addressed with improved checks.
Debian
CVE-2025-31205: webkit2gtk - The issue was addressed with improved checks. This issue is fixed in Safari 18.5...
vendor_debian·2025·CVSS 6.5
CVE-2025-31205 [MEDIUM] CVE-2025-31205: webkit2gtk - The issue was addressed with improved checks. This issue is fixed in Safari 18.5...
The issue was addressed with improved checks. This issue is fixed in Safari 18.5, iOS 18.5 and iPadOS 18.5, macOS Sequoia 15.5, tvOS 18.5, visionOS 2.5, watchOS 11.5. A malicious website may exfiltrate data cross-origin.
Scope: local
bookworm: resolved (fixed in 2.48.3-1~deb12u1)
bullseye: resolved (fixed in 2.48.3-1~deb11u1)
forky: resolved (fixed in 2.48.2-1)
sid: resolved (fixed in 2.48.2-1)
trixie: resolved (fixed in 2.48.2-1)
GHSA
GHSA-jfxw-jpwh-7j8j: The issue was addressed with improved checks
ghsa_unreviewed·2025-05-13
CVE-2025-31205 [MEDIUM] CWE-352 GHSA-jfxw-jpwh-7j8j: The issue was addressed with improved checks
The issue was addressed with improved checks. This issue is fixed in watchOS 11.5, tvOS 18.5, iOS 18.5 and iPadOS 18.5, macOS Sequoia 15.5, visionOS 2.5, Safari 18.5. A malicious website may exfiltrate data cross-origin.
OSV
CVE-2025-31205: The issue was addressed with improved checks
osv·2025-05-12·CVSS 6.5
CVE-2025-31205 [MEDIUM] CVE-2025-31205: The issue was addressed with improved checks
The issue was addressed with improved checks. This issue is fixed in Safari 18.5, iOS 18.5 and iPadOS 18.5, macOS Sequoia 15.5, tvOS 18.5, visionOS 2.5, watchOS 11.5. A malicious website may exfiltrate data cross-origin.
OSV
CVE-2025-31205: The issue was addressed with improved checks
osv·2025-05-12·CVSS 6.5
CVE-2025-31205 [MEDIUM] CVE-2025-31205: The issue was addressed with improved checks
The issue was addressed with improved checks. This issue is fixed in watchOS 11.5, tvOS 18.5, iOS 18.5 and iPadOS 18.5, macOS Sequoia 15.5, visionOS 2.5, Safari 18.5. A malicious website may exfiltrate data cross-origin.
No detection rules found.
No public exploits indexed.
Bugzilla
Cross-origin CSS rule disclosure and redirect URL leak via mOriginClean reset in StyleSheetInfo clone
bugzilla·2026-02-21·CVSS 6.5
CVE-2025-31205 [MEDIUM] Cross-origin CSS rule disclosure and redirect URL leak via mOriginClean reset in StyleSheetInfo clone
Cross-origin CSS rule disclosure and redirect URL leak via mOriginClean reset in StyleSheetInfo clone
Created attachment 9546996
poc.html
Cross-origin CSS rule disclosure and redirect URL leak via mOriginClean reset in StyleSheetInfo clone
## Summary
A cross-origin stylesheet's origin-clean flag can be reset by triggering
StyleSheetInfo's copy constructor, which does not copy the mOriginClean field.
When two elements load the same cross-origin CSS URL, the
SharedStyleSheetCache deduplicates them into a shared StyleSheetInfo inner.
Modifying the sheet's MediaList (e.g. via sheet.media.appendMedium()) calls
WillDirty() -> EnsureUniqueInner(), which clones the shared inner. The clone's
mOriginClean defaults to true (the field initializer), bypassing the CSSOM
origin-clean check. This allo
Bugzilla
CVE-2025-31205 webkit2gtk4.0: A malicious website may exfiltrate data cross-origin [fedora-all]
bugzilla·2025-05-15·CVSS 6.5
CVE-2025-31205 [MEDIUM] CVE-2025-31205 webkit2gtk4.0: A malicious website may exfiltrate data cross-origin [fedora-all]
CVE-2025-31205 webkit2gtk4.0: A malicious website may exfiltrate data cross-origin [fedora-all]
More information about this security flaw is available in the following bug:
https://bugzilla.redhat.com/show_bug.cgi?id=2366501
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Discussion:
This message is a reminder that Fedora Linux 42 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 42 on 2026-05-13.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
'version' of
Bugzilla
CVE-2025-31205 webkitgtk: A malicious website may exfiltrate data cross-origin
bugzilla·2025-05-15·CVSS 6.5
CVE-2025-31205 [MEDIUM] CVE-2025-31205 webkitgtk: A malicious website may exfiltrate data cross-origin
CVE-2025-31205 webkitgtk: A malicious website may exfiltrate data cross-origin
The issue was addressed with improved checks. This issue is fixed in watchOS 11.5, tvOS 18.5, iOS 18.5 and iPadOS 18.5, macOS Sequoia 15.5, visionOS 2.5, Safari 18.5. A malicious website may exfiltrate data cross-origin.
Discussion:
This issue has been addressed in the following products:
Red Hat Enterprise Linux 9
Via RHSA-2025:7995 https://access.redhat.com/errata/RHSA-2025:7995
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 8
Via RHSA-2025:8046 https://access.redhat.com/errata/RHSA-2025:8046
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 8.2 Advanced Update Support
Via RHSA-2025:8531 https://access.redhat.com/errata/RHS
https://support.apple.com/en-us/122404https://support.apple.com/en-us/122716https://support.apple.com/en-us/122719https://support.apple.com/en-us/122720https://support.apple.com/en-us/122721https://support.apple.com/en-us/122722http://seclists.org/fulldisclosure/2025/May/10http://seclists.org/fulldisclosure/2025/May/12http://seclists.org/fulldisclosure/2025/May/13http://seclists.org/fulldisclosure/2025/May/5http://seclists.org/fulldisclosure/2025/May/7https://lists.debian.org/debian-lts-announce/2025/06/msg00016.html
2025-05-12
Published