Same-origin policy bypass in the WebExtensions component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Weakness
The product does not properly verify that the source of data or communication is valid.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Firefox | Mozilla | * | 115.42.0 (excluding) |
| Firefox | Mozilla | 116.0 (including) | 140.17.0 (excluding) |
| Firefox | Mozilla | 141.0 (including) | 153.4.0 (excluding) |
| Firefox | Mozilla | 154.0.0 (including) | 157.0.0 (excluding) |
| Thunderbird | Mozilla | * | 140.17.0 (excluding) |
| Thunderbird | Mozilla | 141.0 (including) | 153.4.0 (excluding) |
| Thunderbird | Mozilla | 154.0 (including) | 157.0 (excluding) |
| Red Hat Enterprise Linux 10 | RedHat | firefox-0:140.17.0-1.el10_2 | * |
| Red Hat Enterprise Linux 10 | RedHat | thunderbird-0:140.17.0-1.el10_2 | * |
| Red Hat Enterprise Linux 10.0 Extended Update Support | RedHat | thunderbird-0:140.17.0-1.el10_0 | * |
| Red Hat Enterprise Linux 8 | RedHat | firefox-0:140.17.0-1.el8_10 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | thunderbird-0:140.17.0-1.el8_4 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | RedHat | thunderbird-0:140.17.0-1.el8_4 | * |
| Red Hat Enterprise Linux 9 | RedHat | firefox-0:140.17.0-1.el9_8 | * |
| Red Hat Enterprise Linux 9 | RedHat | thunderbird-0:140.17.0-1.el9_8 | * |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | RedHat | thunderbird-0:140.17.0-1.el9_2 | * |
| Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | RedHat | thunderbird-0:140.17.0-1.el9_4 | * |
| Red Hat Enterprise Linux 9.6 Extended Update Support | RedHat | thunderbird-0:140.17.0-1.el9_6 | * |
| Mozjs102 | Ubuntu | esm-apps/noble | * |
| Mozjs102 | Ubuntu | jammy | * |
| Mozjs102 | Ubuntu | noble | * |
| Mozjs115 | Ubuntu | noble | * |
| Mozjs52 | Ubuntu | esm-apps/focal | * |
| Mozjs52 | Ubuntu | esm-infra/bionic | * |
| Mozjs68 | Ubuntu | esm-infra/focal | * |
| Mozjs78 | Ubuntu | esm-apps/jammy | * |
| Mozjs78 | Ubuntu | jammy | * |
| Mozjs91 | Ubuntu | jammy | * |
| Thunderbird | Ubuntu | jammy | * |
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/111.html
- https://cwe.mitre.org/data/definitions/141.html
- https://cwe.mitre.org/data/definitions/142.html
- https://cwe.mitre.org/data/definitions/160.html
- https://cwe.mitre.org/data/definitions/21.html
- https://cwe.mitre.org/data/definitions/384.html
- https://cwe.mitre.org/data/definitions/385.html
- https://cwe.mitre.org/data/definitions/386.html
- https://cwe.mitre.org/data/definitions/387.html
- https://cwe.mitre.org/data/definitions/388.html
- https://cwe.mitre.org/data/definitions/510.html
- https://cwe.mitre.org/data/definitions/59.html
- https://cwe.mitre.org/data/definitions/60.html
- https://cwe.mitre.org/data/definitions/75.html
- https://cwe.mitre.org/data/definitions/76.html
- https://cwe.mitre.org/data/definitions/89.html
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2057988
- https://www.mozilla.org/security/advisories/mfsa2026-100/
- https://www.mozilla.org/security/advisories/mfsa2026-101/
- https://www.mozilla.org/security/advisories/mfsa2026-102/
- https://www.mozilla.org/security/advisories/mfsa2026-103/
- https://www.mozilla.org/security/advisories/mfsa2026-97/
- https://www.mozilla.org/security/advisories/mfsa2026-98/
- https://www.mozilla.org/security/advisories/mfsa2026-99/