Cross-site scripting in Mozilla Firefox
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Partial Red Hat: 14 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-79.
Summary
Firefox adds web-compatibility shims in place of some tracking scripts blocked by Enhanced Tracking Protection. On a site protected by Content Security Policy in "strict-dynamic" mode, an attacker able to inject an HTML element could have used a DOM Clobbering attack on some of the shims and achieved XSS, bypassing the CSP strict-dynamic protection. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, and Firefox ESR < 128.1.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Mozilla | Firefox | before 129 | 129 | Patch available | CNA |
| Mozilla | Firefox ESR | before 115.14 | 115.14 | Patch available | CNA |
| Mozilla | Firefox ESR | before 128.1 | 128.1 | Patch available | CNA |
Remediation
- Fix · CNA Firefox (Mozilla) Fixed in 129
- Fix · CNA Firefox ESR (Mozilla) Fixed in 115.14
- Fix · CNA Firefox ESR (Mozilla) Fixed in 128.1
Red Hat 9 advisories
- RHSA-2024:5322 Released 2024-08-15 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 9) firefox-115.14.0-2.el9_4, firefox-x11-115.14.0-2.el9_4
- RHSA-2024:5391 Released 2024-08-14 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream (v. 8) firefox-115.14.0-2.el8_10
- RHSA-2024:5328 Released 2024-08-13 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) firefox-115.14.0-2.el9_2, firefox-x11-115.14.0-2.el9_2
Show 6 more Red Hat advisories
- RHSA-2024:5329 Released 2024-08-13 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) firefox-115.14.0-2.el8_8
- RHSA-2024:5326 Released 2024-08-13 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) firefox-115.14.0-2.el8_6
- Red Hat Enterprise Linux AppStream E4S (v.8.6) firefox-115.14.0-2.el8_6
- Red Hat Enterprise Linux AppStream TUS (v.8.6) firefox-115.14.0-2.el8_6
- RHSA-2024:5324 Released 2024-08-13 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux Server (v. 7 ELS) firefox-115.14.0-2.el7_9
- Red Hat Enterprise Linux Server Optional (v. 7 ELS) firefox-115.14.0-2.el7_9
- RHSA-2024:5327 Released 2024-08-13 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) firefox-115.14.0-2.el9_0
- RHSA-2024:5325 Released 2024-08-13 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox-115.14.0-2.el8_4
- Red Hat Enterprise Linux AppStream E4S (v.8.4) firefox-115.14.0-2.el8_4
- Red Hat Enterprise Linux AppStream TUS (v.8.4) firefox-115.14.0-2.el8_4
- RHSA-2024:5323 Released 2024-08-13 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-115.14.0-2.el8_2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Mozilla Firefox 129
14 records Highest priority Priority MEDIUM 9 MEDIUM, 5 LOW
Other records, highest priority first
- TI-2024-06970 Improper handling of exceptional conditions in Mozilla FirefoxPriority MEDIUM 50
- TI-2024-06979 Use after free in Mozilla FirefoxPriority MEDIUM 49
- TI-2024-06977 Use after free in Mozilla FirefoxPriority MEDIUM 49
- Release ·
Mozilla Firefox ESR 128.1
12 records Highest priority Priority MEDIUM 8 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2024-06970 Improper handling of exceptional conditions in Mozilla FirefoxPriority MEDIUM 50
- TI-2024-06977 Use after free in Mozilla FirefoxPriority MEDIUM 49
- TI-2024-06974 Improper access control in Mozilla FirefoxPriority MEDIUM 46
Show 1 more group
- Release ·
Mozilla Firefox ESR 115.14
9 records Highest priority Priority MEDIUM 6 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2024-06970 Improper handling of exceptional conditions in Mozilla FirefoxPriority MEDIUM 50
- TI-2024-06974 Improper access control in Mozilla FirefoxPriority MEDIUM 46
- TI-2024-06971 Out-of-bounds read in Mozilla FirefoxPriority MEDIUM 46
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2024:5391 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:5322 |
| Red Hat Enterprise Linux AppStream AUS (v. 8.2) | Fixed | RHSA-2024:5323 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2024:5325 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2024:5326 |
| Red Hat Enterprise Linux AppStream E4S (v.8.4) | Fixed | RHSA-2024:5325 |
| Red Hat Enterprise Linux AppStream E4S (v.8.6) | Fixed | RHSA-2024:5326 |
| Red Hat Enterprise Linux AppStream E4S (v.9.0) | Fixed | RHSA-2024:5327 |
| Red Hat Enterprise Linux AppStream EUS (v.8.8) | Fixed | RHSA-2024:5329 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:5328 |
| Red Hat Enterprise Linux AppStream TUS (v.8.4) | Fixed | RHSA-2024:5325 |
| Red Hat Enterprise Linux AppStream TUS (v.8.6) | Fixed | RHSA-2024:5326 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2024:5324 |
| Red Hat Enterprise Linux Server Optional (v. 7 ELS) | Fixed | RHSA-2024:5324 |
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2024-7524
- 2026-10-03 Alias added: GHSA-7m9h-4qg6-4hmh
References
More Mozilla Firefox vulnerabilities
- TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
- TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
- TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
- TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
- TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
- TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2024-7524 · CVE Program
- CVE-2024-7524 · NVD
- FIRST EPSS
- GHSA-7m9h-4qg6-4hmh · GitHub Advisory Database · CC BY 4.0
- CVE-2024-7524 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences