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CVE-2023-25731

HIGH
8.8
CVSS Score
Published: June 2, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:41 AM UTC
1 product affected across 1 vendorFirefox

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Severity
HIGH8.8
Exploit prediction
EPSS 0.6%
SSVC
PoC

Description

Due to URL previews in the network panel of developer tools improperly storing URLs, query parameters could potentially be used to overwrite global objects in privileged code. This vulnerability affects Firefox < 110.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Firefox· Mozilla
95%
v < 110
Affected range stops below 110, so it looks safe — our inference, not a vendor statement
Affected range stops below 110.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Issue TrackingPermissions Required
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1801542
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2023-05/

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfoCWE-1284

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