Back
CVE-2024-8900
An attacker could write data to the user's clipboard, bypassing the user prompt, during a certain sequence of navigational events. This…
High7.5EPSS 0.43%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
An attacker could write data to the user's clipboard, bypassing the user prompt, during a certain sequence of navigational events. This vulnerability affects Firefox < 129, Firefox ESR < 128.3, and Thunderbird < 128.3.
Timeline
ID reserved
By mozilla
- 1 day later
· 1 day later
Published
- 6 months later
· 6 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.43% · top 63% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- Clipboard write permission bypass
- CWE-732 Incorrect Permission Assignment for Critical Resource (opens in a new tab)All about CWE-732 and its CVEs
Affected products
- affected unspecified – < 129
- affected unspecified – < 128.3
- affected unspecified – < 128.3
References (4)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1872841 (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-33/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-47/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-49/ (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2024-8900)Record last updated .