CVE-2024-1550Public exploitNetwork attack vector

Unintended permission grants via pointer-lock cursor reset

Published Feb 20, 2024 · Updated Mar 27, 2025

Clickjacking in Mozilla Firefox before 123, Firefox ESR before 115.8, and Thunderbird before 115.8 lets remote attackers induce permission grants. The pointer-lock release path failed to restore sLastScreenPoint, so leaving fullscreen repositioned the cursor before a permission click. A victim must open attacker-controlled web content and follow the crafted click sequence; ordinary email reading in Thunderbird disables scripting.

CVSS severity6.1
Medium
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Clickjacking in Mozilla Firefox before 123, Firefox ESR before 115.8, and Thunderbird before 115.8 lets remote attackers induce permission grants. The pointer-lock release path failed to restore sLastScreenPoint, so leaving fullscreen repositioned the cursor before a permission click. A victim must open attacker-controlled web content and follow the crafted click sequence; ordinary email reading in Thunderbird disables scripting.

The record

CVE
CVE-2024-1550
Published
Feb 20, 2024
Updated
Mar 27, 2025
Vendor
Mozilla
Product
Firefox
Classifications
CWE-1021, CAPEC-103, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <123

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mozilla · Firefoxversion=unspecified <123
Mozilla · Thunderbirdversion=unspecified <115.8
Mozilla · Firefox ESRversion=unspecified <115.8

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1021Improper Restriction of Rendered UI Layers or Frames
CAPEC-103Clickjacking
T1204User Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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